| 1 |
The outer layer of the Earth is called. |
- A. External core
- B. Mantle
- C. Crust
- D. Inner core
|
| 2 |
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
|
| 3 |
In term of volume, largest part of the earth. |
- A. Crust
- B. Mantle
- C. Core
- D. External core
|
| 4 |
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
|
| 5 |
The amount of fresh water on the Earth is |
- A. about 1 %
- B. about 30%
- C. about 70%
- D. about 90%
|
| 6 |
Which type of soil is good for growth of plants. |
- A. Sand
- B. Silt
- C. Clay
- D. Rock
|
| 7 |
Only plant of solar system whreconditions are conductive for the eistence of life that is. |
- A. Mercury
- B. Venus
- C. Earth
- D. Mars
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| 8 |
The amount of fresh water that available to mankind is approximately to the total amount of water. |
|
| 9 |
The distance of earth from sun is approx |
- A. 160 million kilometer
- B. 150 million kilometer
- C. 140 million kilometer
- D. 170 million kilometer
|
| 10 |
What is important in the neaural measure. |
- A. Minerals
- B. The decayed matter
- C. sand
- D. Salts
|