| 1 |
The cheapest naturally occuring water source. |
- A. Rivr
- B. rain water
- C. Glacier
- D. Ocean
|
| 2 |
Trade of the world is doing through oceans. |
- A. 75%
- B. 80%
- C. 85%
- D. 90%
|
| 3 |
----------------- is made from food scraps and animal waste. |
- A. Sui gas
- B. Biowater
- C. Biogas
- D. None
|
| 4 |
In ........... water turn into water vapours. |
- A. Evaporation
- B. Sublimation
- C. Condensation
- D. Runoff
|
| 5 |
Water absorb heat energy from.............. to turns into vapours. |
- A. Sun
- B. Fire
- C. Moon
- D. Night
|
| 6 |
Available fresh water is on earth.......... |
|
| 7 |
Ocean water is on earth. |
- A. 95%
- B. 96%
- C. 97%
- D. 98%
|
| 8 |
Water covers of the Earth's surface. |
- A. About 69%
- B. About 71%
- C. About 72%
- D. About 75%
|
| 9 |
Water purification methods are. |
|
| 10 |
Liquid water turns into vapours by plant is called. |
- A. Transpiration
- B. Infiltration
- C. Sublimation
- D. Runoff
|