| 1 |
In terms of structure what is the inner most art of the earth are called. |
- A. External core
- B. internal core
- C. Mantle
- D. Crust
|
| 2 |
The particles of sandy soil are of medium size. |
- A. Slit
- B. Humus
- C. Clay
- D. Sand
|
| 3 |
What is therole of living organisms in the soil. |
- A. Making soild soft and airy
- B. Making soil hard
- C. Make soil unfit for cultivations
- D. Making the air dry
|
| 4 |
The volume of inernal core of the earth is........... of the total volume of the earth. |
- A. 15%
- B. 16%
- C. 17%
- D. 18%
|
| 5 |
What % percentage of the earh is water |
- A. 70%
- B. 75%
- C. 72%
- D. 80%
|
| 6 |
Only plant of solar system whreconditions are conductive for the eistence of life that is. |
- A. Mercury
- B. Venus
- C. Earth
- D. Mars
|
| 7 |
What are the main types of the soil? |
- A. Silt, Sand and rock
- B. Clay, humus and sand
- C. Sand, silt and clay
- D. silt, humus andclay
|
| 8 |
Which type of soil is good for growth of plants. |
- A. Sand
- B. Silt
- C. Clay
- D. Rock
|
| 9 |
The amount of fresh water on the Earth is |
- A. about 1 %
- B. about 30%
- C. about 70%
- D. about 90%
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| 10 |
The distance of earth from sun is approx |
- A. 160 million kilometer
- B. 150 million kilometer
- C. 140 million kilometer
- D. 170 million kilometer
|