Among the following gases, the one that is not a greenhouse gas is :
1. CO
2. O3
3. CH4
4. H2O vapor
Match the pollutant (s) in Column I with effect (s) in Column II.
Column I | Column II |
A. Oxides of Sulphur | 1. Red haze in traffic and congested areas |
B. Nitrogen dioxide | 2. Damage to kidney |
C. Lead | 3. ‘Blue baby’ syndrome |
D. Nitrate in drinking water | 4. Respiratory diseases |
Codes
A | B | C | D | |
1. | 2 | 3 | 4 | 1 |
2. | 1 | 2 | 3 | 4 |
3. | 1 | 4 | 3 | 2 |
4. | 4 | 1 | 2 | 3 |
Match the terms given in Column I with the compounds given in Column II.
Column I | Column II |
A. Acid rain | 1. |
B. Photochemical smog | 2. |
C. Combination with hemoglobin | 3. Unsaturated hydrocarbons |
D. Depletion of the ozone layer | 4. |
Codes
A | B | C | D | |
1. | 4 | 2 | 3 | 1 |
2. | 1 | 2 | 3 | 4 |
3. | 4 | 3 | 2 | 1 |
4. | 4 | 1 | 3 | 2 |
The practice that does not come under green chemistry among the following is-
1. | Making use of soap made of vegetable oils instead of using synthetic detergents. |
2. | Using H2O2 for bleaching purposes instead of using chlorine-based bleaching agents. |
3. | Using bicycles for traveling small distances instead of using petrol/diesel based vehicles. |
4. | Using plastic cans for neatly storing substances. |
What is the process involved for a good produce in the treatment of bad odour, flies, and recycling of waste?
1. It should be kept covered.
2. The recyclable waste should not be dumped in the compost-producing pit.
3. It should be sent to the industries through vendors for recycling.
4. All of the above.
The correct statement about domestic waste is :
1. | Only biodegradable domestic waste can be used as manure. |
2. | Non-biodegradable waste should be sent to industries for recycling. |
3. | It can be disposed off in a landfill. |
4. | All of the above. |
Phytoplanktons kill the fish because :
1. | Phytoplanktons decrease the BOD level that causes the death of fish. |
2. | Phytoplanktons increase the BOD level that causes the death of fish. |
3. | Phytoplanktons reduce the amount of dissolved CO2. |
4. | None of the above. |
In the absence of greenhouse gases -
1. | Life on earth would be impossible. |
2. | Average temperature of the earth will decrease drastically. |
3. | There will be no effect on Earth |
4. | Both (1) and (2) |
Environmental chemistry is best defined as :
1. Study of chemical processes in nature.
2. Study of biochemical processes in nature.
3. Both (1) and (2)
4. None of the above.
Tropospheric pollution arises due to the presence of:
1. | SO2, SO3, and NO2, in the lowest layer of the atmosphere. |
2. | SO2, SO3, and NO2, in the uppermost layer of the atmosphere. |
3. | SO2, SO3, and NO2, in the middle layer of the atmosphere. |
4. | All of the above. |