Q. No.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The expanded form of DDT is:
1. Dichloro diphenyl trichloroethane
2. Dichloro diethyl trichloroethane
3. Dichloro dipyridyl trichloroethane
4. Dichloro diphenyl tetrachloroacetate
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Which of the following material takes the longest time for biodegradation?
| 1. | Cotton | 2. | Paper |
| 3. | Bone | 4. | Jute |
Choose the incorrect statement:
| 1. | The Montreal Protocol is associated with the control of the emission of ozone-depleting substances |
| 2. | Methane and carbon dioxide are greenhouse gases |
| 3. | Dobson units are used to measure the oxygen content of air |
| 4. | Use of incinerators is crucial to the disposal of hospital wastes |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Among the following, which one causes the maximum indoor chemical pollution?
1. Burning coal
2. Burning cooking gas
3. Burning mosquito coil
4. Room spray
The green scum seen in the freshwater bodies is:
1. Blue-green algae
2. Red algae
3. Green algae
4. Both 1 and 3
The loudness of a sound that a person can withstand without discomfort is about:
| 1. | 150 dB | 2. | 215 dB |
| 3. | 30 dB | 4. | 80 dB |
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To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The major source of noise pollution in the world is:
1. Office equipment
2. Transport system
3. Sugar, textile, and paper industries
4. Oil refineries and thermal power plants
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