1 |
The distance of earth from sun is approx |
160 million kilometer
150 million kilometer
140 million kilometer
170 million kilometer
|
2 |
the diameter of the earth is approx |
12800 km
12900 km
12700 km
12600 km
|
3 |
Only plant of solar system whreconditions are conductive for the eistence of life that is. |
Mercury
Venus
Earth
Mars
|
4 |
In terms of structure what is the inner most art of the earth are called. |
External core
internal core
Mantle
Crust
|
5 |
What is important in the neaural measure. |
Minerals
The decayed matter
sand
Salts
|
6 |
The amount of fresh water on the Earth is |
about 1 %
about 30%
about 70%
about 90%
|
7 |
What is therole of living organisms in the soil. |
Making soild soft and airy
Making soil hard
Make soil unfit for cultivations
Making the air dry
|
8 |
Which type of soil is good for growth of plants. |
Sand
Silt
Clay
Rock
|
9 |
What are the main types of the soil? |
Silt, Sand and rock
Clay, humus and sand
Sand, silt and clay
silt, humus andclay
|
10 |
The outer layer of the Earth is called. |
External core
Mantle
Crust
Inner core
|