| 1 |
Primary cause of green house effectis. |
- A. Fossil fuel burning
- B. Floods
- C. Drought
- D. Eartquake
|
| 2 |
Type of agricultur ein which vast lands are available for cultivation is called agriculture. |
- A. Subsistence
- B. Extensive
- C. Intensive
- D. None of these
|
| 3 |
The gas responsible for rise in the Earth's emperature. |
- A. Hydrogen
- B. Carbon di oxide
- C. Sulphur di oxide
- D. Nitric Oxide
|
| 4 |
Sowing more than two crops at the same time is called. |
- A. Mono culture
- B. Polyculture
- C. Intercropping
- D. None of these
|
| 5 |
----------- metal is mainly used in steel industry |
- A. Copper
- B. Coal
- C. Chromite
- D. None of these
|
| 6 |
Main crops of Pakistan are divided into major seasons. |
- A. Two
- B. Three
- C. Four
- D. Five
|
| 7 |
Ultraiolet rays cause cancer in people. |
- A. Liver
- B. Eye
- C. Kidney
- D. Skin
|
| 8 |
Example fo green house gas. |
- A. Helium
- B. Hydrogen
- C. Carbon di oxide
- D. Nitrogen
|
| 9 |
Problem of air pollution is common in settlement. |
- A. Rural
- B. Urban
- C. Both aand b
- D. None of these
|
| 10 |
Theworld's liquid is found below ground. |
- A. 25%
- B. 30%
- C. 35%
- D. 40%
|