- 1(current)
Q. No.Which of the following conditions shows the polluted environment?
| a. | pH of rainwater is 5.9 |
| b. | Amount of carbon dioxide in the atmosphere is 0.03% |
| c. | Biochemical oxygen demand 10 ppm |
| d. | Eutrophication |
Choose the correct option
1. (a, b, c)
2. (b, c, d)
3. (c, d)
4. (a, b, d)
Match the activity given in Column I with the type of pollution created by it given in Column II.
|
Column I (Activity) |
Column II (Effect) |
|
A. Releasing gases to the atmosphere after burning waste material containing Sulphur |
1. Water pollution |
|
B. Using carbamates as pesticides |
2. Photochemical smog, damage to plant life, corrosion to building material, induce breathing problems, water pollution |
|
C. Using synthetic detergents for washing clothes |
3. Damaging ozone layer |
|
D. Releasing gases produced by automobiles and factories in the atmosphere |
4. May cause nerve disease in human |
|
E. Using chlorofluorocarbon compounds for cleaning computer parts |
5. Classical smog, acid rain, water pollution, induce breathing problems, damage to buildings, corrosion of metals |
Codes
| Options: | A | B | C | D | E |
| 1. | 2 | 3 | 4 | 1 | 5 |
| 2. | 1 | 2 | 3 | 5 | 4 |
| 3. | 5 | 4 | 1 | 2 | 3 |
| 4. | 4 | 5 | 3 | 2 | 1 |
- 1(current)
Q. No.
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