| 1 |
Ozone depletion in stratosphere region is mainly due to the reaction of O3 with |
- A. O2
- B. SO2
- C. CFCs
- D. All of these
|
| 2 |
Acid rain fist of all was observed by |
- A. Augus Smith
- B. Robert Hook
- C. Mosley
- D. Watson
|
| 3 |
How much fresh water is used for domestic purpose |
- A. 8%
- B. 23%
- C. 69%
- D. 100%
|
| 4 |
The pH range of the acid rain is |
- A. 7-6-5
- B. 6.6-6
- C. 6-5.6
- D. less than 5
|
| 5 |
Peroxyacetyl nitrate is an irritant to humab beings and it affects |
- A. Eyes
- B. Ears
- C. Stomach
- D. Nose
|
| 6 |
The pH of truly acidic rain is |
- A. 7-6.8
- B. 6.5-6
- C. 6-5.6
- D. less than 5
|
| 7 |
Ecosystem is smaller unit of |
- A. Lithosphere
- B. Hydroshpere
- C. Amosphere
- D. Biosphere
|
| 8 |
The disease can be eradicated by using pesticides. |
- A. Malaria
- B. Yellow fever
- C. Sleeping sickness
- D. All of these
|
| 9 |
The region of earth capable of supposing life is called. |
- A. Atmosphere
- B. Bisphere
- C. Dithosphere
- D. Hydrosphere
|
| 10 |
Fungicides are the pesticides which |
- A. Control the growth of fungus
- B. Kill insects
- C. Kill plants
- D. Kill herbs
|
