Question # 1

In addition to their role in ozone depletion,CFCs play a role in global warming by

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Absorbing solar radiation

Blocking ultraviolet B radiation

Absorbing earth shine in the 10 micron region

Destroying ozone, which cools the earth

The population of a town is decreased by 20% and 25% in two successive years. What per cent population is decreased after tow years ?

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50%

40%

60%

None of these

9⁶ + 7, when divided by 8, would have a remainder of

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0

6

5

None of these

What is the area of an equilateral triangle whose altitude is 6 ?

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18

12√3

18√3

36

Number Series Test

9.99, 8.99, 7.99, .................................

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5.99

6.99

7.40

10.99

Richest source of Riboflavin is:

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Papaya

Mango

Bael

Karonda

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80^o

90^o

100^o

None of these

If 7a - 5 < 6a + 11, then find the value of a ?

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a > 16

a = 16

a < 16

a ≤ 16

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90^o

75^o

80^o

110^o

A cricketer has certain average for 9 innings. In the tenth inning, he scores 100 runs, thereby increasing his average by 8 runs. His new average is:

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20 runs

24 runs

28 runs

32 runs

Function of iron in body is:

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Provide strength

Oxygen transport

Help in hydrolysis

Breakdown fats

Basic metals can be converted into gold by;

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Heating

Beating

Artificial nuclear radioactive

Chemical reaction

Graphite is used in nuclear reactor as:-

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Fuel

Control rods

moderator

Coolant

Farmers in the North have observed that heavy frost is usually preceded by a full moon somehow generates the frost.

Which of the following, if true, would weaken the farmers conviction ?

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The temperature must fall below 10 degrees Celsius (50 degrees Fahrenheit) for frost to occur.

Absence of a cloud cover cools the ground which causes frost.

Farmers are superstitious.

No one has proven that the moon causes frost.

Farmers are not experts in meteorology.

What is H5N1 a term which was very much in news?

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It is a category of visa provided by the USA for students

it is the name of virus which cause bird flu

It is the code name of NASA 's space mission 2010

It was the name of the military operation launched by sri lanka against LTTE.

Rich source of vitamin B1 is

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Grape

Banana

Cashew nut

Guava

Ecology is the study of

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Earth

Environment

Plant Nutrition

None of these

If a product is said to be sugar free it contains how much sugar?

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None

Less then 0.5 grams of sugar per serving

Less then 10.0 grams

Not more then 40 kcal per serving

Our sun is classified as

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A blue giant

A Yellow dwarf

Supernova

None of these

The sharp-bitter taste of unripe fruits is due to high concentration of:

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Phenolic compounds

Volatile compounds

Organic acids

Starch

Number Series Test

16, 18, 21, 25,. ..............................

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20

31

40

30

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