Q. No.The radiatively active gas with the maximum percent increase in the atmosphere since 1750 AD is:
1.
Carbon dioxide
2.
Methane
3.
Nitrous oxide
4.
Chlorofluorocarbons
Non-biodegradable pollutants are created by:
1. Nature
2. Excessive use of resources
3. Humans
4. Natural disasters
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According to Central Pollution Control Board, the diameter of particles that are responsible for causing great harm to human health is:
1. 2.5 micrometer
2. 5.0 micrometer
3. 10.0 micrometer
4. 7.5 micrometer
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The material generally used for soundproofing rooms like a recording studio or an auditorium is:
| 1. | Cotton | 2. | Coir |
| 3. | Wood | 4. | Styrofoam |
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To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
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The expanded form of DDT is:
1. Dichloro diphenyl trichloroethane
2. Dichloro diethyl trichloroethane
3. Dichloro dipyridyl trichloroethane
4. Dichloro diphenyl tetrachloroacetate
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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 |
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