When her grandmother’s health began to deteriorate in the
fall of 1994, Mary would make the drive from Washington, DC to Winchester every
few days.
She hated highway driving, finding it ugly and monotonous. She
preferred to take meandering back roads to her grandmother’s hospital. When she
drove through the rocky town of Harpers Ferry, the beauty of the rough waters
churning at the intersection of the Shenandoah and Potomac rivers always
captivated her.
Toward the end of her journey, Mary had to get on highway
81. It was here that she discovered a surprising bit of beauty during one of
her trips. Along the median of the highway, there was a long stretch of
wildflowers. They were thin and delicate and purple, and swayed in the wind as
if whispering poems to each other.
The first time she saw the flowers, Mary was seized by an uncontrollable
urge to pull over on the highway and yank a bunch from the soil. She carried
them into her grandmother’s room when she arrived at the hospital and placed
them in a water pitcher by her bed. For a moment her grandmother seemed more
lucid than usual. She thanked Mary for the flowers, commented on their beauty
and asked where she had gotten them. Mary was overjoyed by the ability of the
flowers to wake something up inside her ailing grandmother.
Afterwards, Mary began carrying scissors in the car during
her trips to visit her grandmother. She would quickly glide onto the shoulder,
jump out of the car, and clip a bunch of flowers. Each time Mary placed the
flowers in the pitcher, her grandmother’s eyes would light up and they would
have a splendid conversation.
One morning in late October, Mary got a call that her
grandmother had taken a turn for the worse. Mary was in such a hurry to get to
her grandmother that she sped past her flower spot. She decided to turn around
head several miles back, and cut a bunch. Mary arrived at the hospital to find her
grandmother very weak and unresponsive. She placed flowers in the pitcher and
sat down. She felt a squeeze on her fingers. It was the last conversation they
had.
“They were thin and delicate and purple, and swayed in the
wind as if whispering poems to each other.”
Which of the following literary techniques is used in the
above sentence?
The public distribution system, which provides food at low
prices, is a subject of vital concern. There is a growing realization that
thought Pakistan has enough food to feed its masses three square meals a day,
the monster of starvation and food insecurity continues to haunt the poor in
our country.
Increasing the purchasing power of the poor through
providing productive employment leading to rising income, and thus good standard
of living is the ultimate objective of public policy. However, till then, there
is a need to provide assured supply of food through a restructured more
efficient and decentralized public distribution system (PDS).
Although the PDS is extensive – it is one of the largest
such systems in the world – it has yet to reach the rural poor and the far off
places. It remains an urban phenomenon, with the majority of the rural poor
still out of its reach due to lack of economic and physical access. The poorest
in the cities and the migrants are left out, for they generally do not possess
ration cards. The allocation of PDS supplies in big cities is larger than in
rural areas. In view of such deficiencies in the system, the PDS urgently needs
to be streamlined. In addition, considering the large food grains production
combined with food subsidy on one hand and the continuing slow starvation and dismal
poverty of the rural population on the other, there is a strong case for making
PDS target group oriented.
The growing salaried class is provided job security, regular
income, and percent insulation against inflation. These gains of development
have not percolated down to the vast majority of our working population. If one
compares only dearness allowance to the employees in public and private sector
and looks at its growth in the past few years, the rising food subsidy is
insignificant to the point of inequity. The food subsidy is a kind of D.A. to
the poor, the self-employed and those in the unorganized sector of the economy.
However, what is most unfortunate is that out of the large budget of the so –
called food subsidy, the major part of it is administrative cost and wastages.
A small portion of the above budget goes to the real consumer and an even
lesser portion to the poor who are in real need.
It is true that subsidies should not become a permanent feature
except for the destitute, disabled widows and the old. It is also true that
subsidies often create a psychology of dependence and hence is habit – forming,
killing the general initiative of the people. By making PDS target group
oriented, not only the poorest and neediest would be reached without additional
cost, but it will actually cut overall costs incurred on large cities and for
better off localities. When the food and food subsidy are limited the rural and
urban poor should have the priority in the PDS supplies. The PDS should be
closely linked with programs of employment generation and nutrition
improvement.
What, according the
passage, would be the outcome of making the PDS target group oriented?
Paul’s wife knows Paul loves to read cookbooks. She decides to
get him one for his birthday. Paul tells her he will try to make a new recipe
for three days in a row. On Monday, Paul makes blueberry pancakes for
breakfast. He gets the blueberries from the farmers’ market. On Tuesday, Paul
makes beef soup for dinner. He puts in cubes of beef, carrots, and onions. The
recipe calls for cream, but Paul does not cream. He uses water instead. On Wednesday,
Paul makes a tomato salad with cucumbers and onions. He picks the cucumbers and
tomatoes from his garden. He likes this dish best. It was also the easiest for
him to make.
On what day does Paul make pancakes?
Lilly loves her town. She loves
the mall. She loves the parks. She also loves her school. Most of all, though,
Lilly loves the seasons. In her old town, it was hot all of the time.
Sometimes it is cold in Lilly’s
new town. The cold season is in winter. Once in a while it snows. Lilly has
never seen snow before. So far her, the snow is exciting as well as very
beautiful. Lilly has to wear gloves to keep her hands warm. She also wear a
scarf around her neck.
In spring, flowers bloom and the
trees turn green with new leaves. Pollen falls on the cars and windowsills and
makes Lilly sneeze. People work in their yards and mow their grass.
In summer, Lilly wears her old
shorts and sandals- the same ones she used to wear in her old town. It is hot
outside, and dogs lie in the shade. Lilly and her friends go to a pool or play
in the water sprinkler. Her father cooks hamburgers on the grill for dinner.
Lilly’s favorite season is autumn.
In autumn, the leaves on the trees turn yellow, gold, red, and orange.
Halloween comes in autumn, and this Lilly’s favorite holiday. Every Halloween,
Lilly wears a costume. Last year she wore a mouse costume. This year she will
wear a fish costume.
One evening in autumn, Lilly and
her mom are on sitting together on the porch. Mom tells Lilly that autumn is
also called “fall”. This is a good idea, Lilly thinks, because in the fall all
of the leaves fall down from the trees.
Which of the following words best
describes the way Lilly feels about living in her new town
Educational planning should aim at meeting the educational needs
of the entire population of all age group. While the traditional structure of
education as a three layer hierarchy from the primary stage to the university
represents the core, we should not overlook the periphery which is equally
important. Under modern conditions, workers need to rewind, or renew their
enthusiasm, or strike out in a new direction, or improve their skills as much
as any university professor. The retired and the age have their needs as well.
Educational planning, in their words, should take care of the needs of
everyone.
Our structures of education have been built up on the
assumption that there is a terminal point to education. This basic defect has
become all the more harmful today. A UNESCO report entitled ‘learning to Be’
prepared by Edgar Faure and others in 1973 asserts that the education of
children must prepare the future adult for various forms of self – learning. A
viable education system of the future should consist of modules with different
kinds of functions serving a diversity of constituents. And performance, not
the period of study, should be the basis for credentials. The writing is
already on the wall.
In view of the fact that the significance of a commitment of
lifelong learning and lifetime education is being discussed only in recent years
even in educationally advanced countries, the possibility of the idea becoming
an integral part of educational thinking seems to be a far cry. For, to move in
that direction means such more than some simple rearrangement of the present
organization of education. But a good beginning can be made by developing Open
University programs for older learners of different categories and introducing
extension services in the conventional colleges and schools. Also these
institutions should learn to cooperate with the numerous community
organizations such as libraries. Museums, municipal recreational programs,
health services etc.
In the context of the
passage, what is the meaning of the sentence ‘The writing is already on the wall’?
Many people like to eat pizza, but
not everyone knows knows how to make it. Making the perfect pizza can be complicated,
but there are lots of ways for you to make basic version at home.
When you make pizza, you must
begin with the crust. The crust can be hard to make. If you want to make the
crust yourself, you will have to make dough using flour, water, and yeast. You
will have to knead the dough with your hands. If you do not have enough time to
do this, you can use a prepared crust that you buy from the store.
After you have chosen your crust,
you must then add the sauce. Making your own sauce from scratch can take a long
time. You have to buy tomatoes, peel them, and then cook them with spices. If
this sounds like too much work, you can also purchase jarred sauce from the
store. Many jarred sauces taste almost as good as the kind you make at home.
Now that you have your crust and
your sauce, you need to add the cheese. Cheese comes from milk, which comes
from cows. Do you have a cow in your backyard? Do you how to milk the cow? Do
you know how to turn that milk into cheese? If not, you might want to buy
cheese from the grocery store instead of making it yourself. When you have the
crust, sauce, and cheese ready, you can add other toppings. Some people like to
put meat on their pizza, while other people like to add vegetables. Some people
even like to add pineapple! The best part of making a pizza at home is that you
can customize it by adding your own favorite ingredients
In paragraph 3, the author writes,
“Many jarred sauce taste almost as good as the kind you make at home.” The
purpose of this statement is to
The year 2006 was the golden
anniversary, or the 50th birthday, of the Dwight D. Eisenhower
National System of Interstate and Defense Highways. This system, usually
referred to as The Interstate Highway System, is a system of freeways named
after the U.S. President who supported it. The system is the largest highway
system in the world, consisting of 46,876 miles (75,440 km) of freeways. The
construction of the interstate highway system is an important part of American
history. It has played a major role in preserving and maintaining the America way of life.
The interstate highway system has
several major functions. One of its major functions is to facilitate the distribution of US good. Because the
intestate passes through many downtown areas, it plays an important role in the
distribution of almost all goods in the United States.
Nearly all products travel at least part of the way to their destination on the
Interstate System. Another major function of the interstate is to facilitate
military troop movement to and from airports, seaports, rail terminals and
other military destinations. The Interstate highways are connected to route in
the Strategic Highway Network, which is a system of highways that are vital to the U.S. Department of Defense.
Today, most of the Interstate system
consists of newly constructed highways. The longest section of the Interstate
system runs from Boston, Massachusetts to Seattle, Washington. It covers
3,020.54 miles. The shortest two-digit interstate is from Emery, North Caroline
to Greensboro, North Caroline. It covers only 12.27 miles. All state capitals
except five are served by the system. The five that are not directly served are
Juneau, AK, Dover, DE, Jefferson City, MO, Carson City, NV, and Pierre, SD. The
Interstate Highway System serves almost all major U.S. cities.
EACH Interstate highway is marked
with a red, white, and blue shield with the word “Interstate,” the name of the
state, and the route number. Interstate highways are named with one or
two-digit numbers. North-south highways are designated with odd numbers; east-west highways are
named with even numbers. The north-south Interstate highways begin in the west
with the lowest odd number; the east-west highways begin in the south with the
lowest even numbers. There all mile markers at each mile of the interstate
system, starting at the westernmost or southernmost point on the highway. Every
Interstate highway begins with the number “0”. Interchanges are numbered
according to their location on the highway in relation to mileage; an exit
between milepost 7 and milepost 8 would be designated “Exit 7.” This system
allows drivers estimate the distance to a desired exit, which a road is leading
off the highway. Despite the common acceptance of the numbering system on the
Interstate highways, some states have adopted different numbering systems. For
example, a portion of the Interstate 19 in Arizona is measured in kilometers
instead of miles since the highway goes south to Mexico.
Since the Interstate highways are
freeways-highways that do not have signs and cross streets – they have the
highest speed limits in the nation. Most interstate highways have speed limits
between 65 – 75 miles per hour (105 – 120 kilometers per hour), but some areas
in Texas and Utah have an 80 mile-per-hour (130 kilometer-per-hour) speed
limit.
The federal government primarily
funds interstate highways. However, they are owned and operated by the
individual states or toll authorities in the states. The federal government
generally funds up to 90% of the cost of an Interstate highway, while the
states pay the remainder of the cost.
If something is designated, it is
Many people like to eat pizza, but
not everyone knows knows how to make it. Making the perfect pizza can be complicated,
but there are lots of ways for you to make basic version at home.
When you make pizza, you must
begin with the crust. The crust can be hard to make. If you want to make the
crust yourself, you will have to make dough using flour, water, and yeast. You
will have to knead the dough with your hands. If you do not have enough time to
do this, you can use a prepared crust that you buy from the store.
After you have chosen your crust,
you must then add the sauce. Making your own sauce from scratch can take a long
time. You have to buy tomatoes, peel them, and then cook them with spices. If
this sounds like too much work, you can also purchase jarred sauce from the
store. Many jarred sauces taste almost as good as the kind you make at home.
Now that you have your crust and
your sauce, you need to add the cheese. Cheese comes from milk, which comes
from cows. Do you have a cow in your backyard? Do you how to milk the cow? Do
you know how to turn that milk into cheese? If not, you might want to buy
cheese from the grocery store instead of making it yourself. When you have the
crust, sauce, and cheese ready, you can add other toppings. Some people like to
put meat on their pizza, while other people like to add vegetables. Some people
even like to add pineapple! The best part of making a pizza at home is that you
can customize it by adding your own favorite ingredients
In paragraph 4, the author asks a
series of question in order to
Although cynics may like to see he government’s policy for
women in terms of the party’s internal power struggles, it will nevertheless be
churlish to deny that it represents a pioneering effect aimed at bringing about
sweeping social reforms. In its language, scope and strategies, the policy documents
displays a degree of understanding of women’s needs that is uncommon in
government pronouncements. This is due in large part to the participatory
process that marked its formulation, seeking the active involvement right from
the start of women’s groups, academic institutions and non-government
organizations with grass roots experience. The result is not just a lofty
declaration of principles but a blueprint for a practical program of action.
The policy delineates a series of concrete measures to accord women a
decision-making role in the political domain and greater control over their
economic status. Of especially far-reaching impart are the devolution of
control of economic infrastructure to women, notably at the gram panchayat
level, and the amendment proposed in the Act of 1956 to give women comparcenary
rights.
And enlightened aspect of the policy is its recognition that
actual change in the status of women cannot be brought about by the mere enactment
of socially progressive legislation. Accordingly, it focuses on reorienting
development programs and sensitizing administrations to address specific
situations as, for instance, the growing number of households headed by women,
which is a consequence of rural-urban migration. The proposal to create an
equal-opportunity police force and give women greater control of police
stations is an acknowledgement of the biases and callousness displayed by the
generally all-male law-enforcement authorities in case of dowery and domestic
violence. While the mere enunciation of such a policy has the salutary effect
of sensitizing the administration as a whole, it does not make the task of its
implementation any easier. This is because the changes it envisages in the
political and economic status of woman strike at the root of power structures
in society and the basis of man-woman relationship. There is also the danger
that reservation for women in public life, while necessary for their greater
visibility, could lapse into tokenism or become a tool in the hands of vote
seeking politicians. Much will depend on the dissemination of the policy and
the ability of elected representatives and government agencies to reorder their
priorities.
At which stage were the
grass-root level organizations involved for the policy?
Democratic societies from the earliest times have expected
their governments to protect the weak against the strong. No ‘era of good
feeling’ can justify discharging the police force or giving up the idea of
public control over concentrated private wealth. On the other hand, it is
obvious that a spirit of self – denial and moderation on the part of those who
hold economic power will greatly soften the demand for absolute equality. Men
are more interested in freedom and security than in an equal distribution of
wealth. The extent to which Government must interfere with business, therefore,
is not exactly measured by the extent to which economic power is concentrated
into a few hands. The required degree of government interference depends mainly
on whether economic powers are oppressively used, and on the necessity of
keeping economic factors in a tolerable state of balance.
However, with the necessity of meeting all these dangers and
threats to liberty, the powers of government are unavoidably increased,
whichever political party may be in office. The growth of government is a
necessary result of the growth of technology and of the problems that go with
the use of machines and science. Since the government in our nation, must take
on more powers to meet its problems, there is no way to preserve freedom except
by making democracy more powerful.
‘Era of good feeling’ in the paragraph refer to
Paul’s wife knows Paul loves to read cookbooks. She decides to
get him one for his birthday. Paul tells her he will try to make a new recipe
for three days in a row. On Monday, Paul makes blueberry pancakes for
breakfast. He gets the blueberries from the farmers’ market. On Tuesday, Paul
makes beef soup for dinner. He puts in cubes of beef, carrots, and onions. The
recipe calls for cream, but Paul does not cream. He uses water instead. On Wednesday,
Paul makes a tomato salad with cucumbers and onions. He picks the cucumbers and
tomatoes from his garden. He likes this dish best. It was also the easiest for
him to make.
What does Paul get from the farmer’s market?
The Baxter house is located at the
end of the street. This house sits farther back from the curb than the other
houses. It is almost difficult to see from the road without peering behind the
deformed oak tree that has obscured it for years. Even so, the Baxter house
stands out from the other houses on the street. It is tall and white. However,
this white is no longer pristinely white, but a dingy grayish cram color. Long
vines hang from the tattered roof. The Baxter house is two stories tall and has
a large yard in the back that has never been mowed. The other houses on the
street are a mere one story and have been painted a variety of colors. The
newer, single story properties all appear to have been built around the same time;
the yards mostly being of the same size, and the houses appearing to be clones
of one another. Aside from the Baxter house at the end, this street is a
perfect slice of middle America. The inhabitants of the other houses wonder who
lives in the ancient, dilapidated house at the end of the street.
The inhabitants of the other
houses
Educational planning should aim at meeting the educational needs
of the entire population of all age group. While the traditional structure of
education as a three layer hierarchy from the primary stage to the university
represents the core, we should not overlook the periphery which is equally
important. Under modern conditions, workers need to rewind, or renew their
enthusiasm, or strike out in a new direction, or improve their skills as much
as any university professor. The retired and the age have their needs as well.
Educational planning, in their words, should take care of the needs of
everyone.
Our structures of education have been built up on the
assumption that there is a terminal point to education. This basic defect has
become all the more harmful today. A UNESCO report entitled ‘learning to Be’
prepared by Edgar Faure and others in 1973 asserts that the education of
children must prepare the future adult for various forms of self – learning. A
viable education system of the future should consist of modules with different
kinds of functions serving a diversity of constituents. And performance, not
the period of study, should be the basis for credentials. The writing is
already on the wall.
In view of the fact that the significance of a commitment of
lifelong learning and lifetime education is being discussed only in recent years
even in educationally advanced countries, the possibility of the idea becoming
an integral part of educational thinking seems to be a far cry. For, to move in
that direction means such more than some simple rearrangement of the present
organization of education. But a good beginning can be made by developing Open
University programs for older learners of different categories and introducing
extension services in the conventional colleges and schools. Also these
institutions should learn to cooperate with the numerous community
organizations such as libraries. Museums, municipal recreational programs,
health services etc.
According to the author,
educational plan should attempt to
First introduced in 1927, The Hardy
Boys Mystery Stories are a series of books about the adventures of brothers
Frank and Joe Hardy, teenaged detectives who solve one baffling mystery after
another. The Hardy Boys were so popular among young boys that in 1930 a similar
series was created for girls featuring a sixteen-year-old detective named Nancy
Drew. The cover of each volume of The Hardy Boys states that he author of the
series is Franklin W. Dixon; the Nancy Drew Mystery Stories are supposedly
written by Carolyn Keene. Over the years, though, many fans of both series have
been surprised to find out that Franklin W. Dixon and Carolyn Keene are not
real people. If Franklin W. Dixon and Carolyn Keene never existed, then who
wrote The Hardy Boys and Nancy Drew mysteries?
The Hardy Boys and the Nancy Drew
books were written through a process called ghostwriting. A ghostwriter writes
a book according to a specific formula. While ghostwriters are paid for writing
the books, their authorship is not acknowledged, and their names do not appear
on the published books. Ghostwriters can write books for children or adults,
the content of which is unspecific. Sometimes they work on book series with a
lot of individual titles, such as The Hardy Boys and the Nancy Drew series.
The initial idea for both The Hardy
Boys and the Nancy Drew series was developed by a man named Edward Stratemeyer,
who owned a publishing company that specialized in children’s book.
Stratemeyer noticed the increasing
popularity of mysteries among adult, and surmised that children would enjoy
reading mysteries about younger detectives with whom they could identify.
Stratemeyer first developed each book with an outline describing the plot and
setting. Once he completed the outline, Stratemeyer then hired a ghostwriter to
convert it into a book of slightly over 200 pages. After the ghostwriter had
written a draft of a book, he or she would send it back to Stratemeyer, who
would make a list of corrections and mail it back to the ghostwriter. The
ghostwriter would revise the book according to Stratemeyer’s instructions and
then return it to him. Once Stratemeyer approved the book, it was ready for
publication.
Because each series ran for so many
years, Nancy Drew and The Hardy Boys both had a number of different
ghostwriters producing books; however, the first ghostwrites for each series proved
to be the most influential. The initial ghostwriter for The Hardy Boys was a
Canadian journalist named Leslie McFarlane. A few years later, Mildred A. Wirt,
a young writer from lowa, began writing the Nancy Drew books. Although they
were using prepared outlines as guides, both McFarlane and Wirt developed the
characters themselves. The personalities of Frank and Joe Hardy and Nancy arose
directly from McFarlane’s and wirt’s imaginations. For example, Mildred Wirt
had been a star college athelete and gave Nancy similar athletic abilities. The
ghostwriters were also responsible for numerous plot and setting details.
Leslie McFarlane used elements of his small C fictional hometown.
Although The Hardy Boys and Nancy
Drew books were very popular with children, not everyone approved of them.
Critics thought their plots were unrealistic and even far-fetched, since most
teenagers did not experience the adventures Frank and Joe Hardy or Nancy Drew
did. The way the books were written also attracted criticism. Many teachers and
librarians objected to the ghostwriting process, claiming it was designed to
produce books quickly rather than create quality literature. Some libraries –
including the New York Public Library – even refused to include the books in
their children’s collections. Ironically, this decision actually helped sales
of his books, because children simply purchased them when they were unavailable
in local libraries.
Regardless of the debates about
their literary merit, each series of books has exerted an undeniable influence
on American and even global culture. Most Americans have never heard of Edward
Stratemeyer, Leslie McFarlane, or Mildred wirt, but people throughout the world
are familiar with Nancy Drew and Frank and Joe Hardy.
Which of the following best
describes the structure of this passage?
Arrowheads, which are ancient
hunting tools, are often themselves ‘hunted’ for their interesting value both
as artifacts and as art. Some of the oldest arrowheads in the United States
date back 12,000 years. They are not very difficult to find. You need only to
walk with downcast eyes in a field that has been recently tilled for the spring
planting season, and you might find one.
Arrowheads are tiny stones or pieces
of wood, bone, or metal which have been sharpened in order to create a tipped
weapon used in hunting. The material is honed to an edge, usually in a
triangular fashion, and is brought to a deadly tip. On the edge opposite the
tip is a flared tail. Though designs vary depending on the region, purpose, and
era of the arrowhead’s origin, the tails serve the same purpose. The tail of
the arrowhead is meant to be strapped onto a shaft, which is a straight wooden
piece such as a spear or an arrow. When combined, the arrowhead point and the
shaft become a lethal projectile weapon to be thrown by arm or shot with a bow
at prey.
Indian arrowheads are important
artifacts that give archeologists (scientists who study past human societies)
clues about the lives of Native Americans. By analyzing an arrowhead’s shape,
they can determine the advancement of tool technologies among certain Native
American groups. By determining the origin of the arrowhead material (bone,
rock, wood, or metal), they can trace the patterns of travel and trade of the
hunters. By examine the location of the arrowheads, archeologists can map out
hunting grounds and other social patterns.
Arrowheads are commonly found
along riverbanks or near creek beds because animals drawn to natural water sources
to sustain life were regularly found drinking along the banks. For this reason,
riverbeds were a prime hunting ground for the Native Americans. Now, dry and
active riverbeds are prime hunting grounds for arrowhead collectors.
Indian arrowheads are tiny pieces
of history that fit in the palm of your hand. They are diary entries in the
life of a hunter. They are museum pieces that hide in the dirt. They are
symbolic of the eternal struggle between life and death.
As it is used in paragraph 2,
which is the best antonym for
honed
Yellowstone National Park is the
U.S. States of Wyoming, Idaho and Montana. It became the first National Park in
1872. There are geysers and hot springs at Yellowstone. There are also many
animals at Yellowstone. There are elk, bison, sheep, grizzly, black bears,
moose, coyotes, and more.
More than 3 million people visit
Yellowstone National Park year. During the winter, visitors can ski or go
snowmobiling there. There are also snow coaches that give tours. Visitors can
see steam (vapor water) come from the geysers. During
other seasons, visitors can go boating or fishing. People can ride horses
there. There are nature trails and tours. Most visitors want to see Old
Faithful, a very predictable geyser at
Yellowstone Visitors can check a schedule to see the exact time that Old
Faithful is going to erupt. There are many other geysers and boiling springs in
the area. Great Fountain Geyser erupts every 11 hours. Excelsior Geyser
produces 4,000 gallons of boiling water each minute! Boiling water is 100
degrees Celsius, or 212 degrees Fahrenheit – that’s very hot! People also like
to see the Grand Prismatic Spring. It is the largest hot spring in the park. It
has many beautiful colors. The beautiful colors are caused by bacteria in the water. These are forms of life that
have only one cell. Different bacteria live in different water temperatures. Visiting Yellowstone National Park can be a week
– long vacation or more. It is beautiful and there are activities for everyone.
What is ‘Yellowstone’?
Fleas are perfectly designed by
nature to feast on anything containing blood. Like a shark in the water or a
wolf in the woods, fleas are ideally equipped to do what they do, making them
very difficult to defeat. The bodies of these tiny parasites are extremely
hardy and well-suited for their job.
A flea has a very hard exoskeleton,
which means the body is covered by a tough, tile-like plate called a sclerite.
Because of these plates, fleas are almost impossible to squish. The
exoskeletons of fleas are also waterproof of fleas are also waterproof and shock
resistant, and therefore fleas are highly resistant to the sprays and chemicals
used to kill them.
Little spines are attached to his
plate. The spine the flea scurries through an animal’s fur in – search of
grooming pet tries to pull a flea off through the hair coat, these spines will
extend and stick to the fur like Velcro.
Fleas are some of the best jumpers
in the natural world. A flea can jump seven inches, or 150 times its own
length, either vertically or horizontally. An equivalent jump for a person
would be 555 feet, the height of the Washington Monument. Fleas can jump 30,000
times in a row without stopping, and they are able to accelerate through the
air at an incredibly high rate – a rate which is over ten times what humans can
withstand in an airplane.
Fleas have very long rear legs with
huge thigh muscles and multiple joints. When they get ready to jump. They fold their
long legs up and crouch like a runner on a staring block. Several of their
joints contain a protein called resilin, which helps catapult fleas into the
air as they jump, similar to the way a rubber band provides momentum to a
slingshot. Outward facing claws on the bottom of their legs grip anything they
touch when they land.
The adult female flea mates after
her first blood meal and begins producing eggs in just 1 to 2 days. One flea
can lay up to 50 eggs in one day and over 2,000 in her lifetime. Flea eggs can
be seen with the naked eye, but they are about the size of a grain of salt. Shortly
after being laid, the eggs begin to transform into cocoons. In the cocoon
state, fleas are fully developed adults, and will hatch immediately if
conditions are favorable. Fleas can detect warmth, movement, and carbon dioxide
in exhaled breath, and these three factors stimulate them to emerge as new
adults. If the flea does not detect appropriate conditions, it can remain
dormant in the cocoon state for extended periods. Under ideal conditions, the
entire life cycle may only take 3 weeks, so in no time at all, pets and homes
can become infested.
Because of these characteristics,
fleas are intimidating opponents. The best way to control fleas, therefore, is
to take steps to prevent an infestation from ever occurring.
The author mentions the Washington
Monument in order to
Flux through a closed surface of any shape and flux
through the surface of a sphere drawn around a charge are: