Q. No.| 1. | Kilobase | 2. | Dobson unit |
| 3. | Decibels | 4. | Decameter |
High dose of UV-B causes inflammation of cornea and is called as:
1. UV -blindness
2. Colour-blindness
3. Evening- blindness
4. Snow- blindness
The thickness of the ozone in a column of air from the ground to the top of the atmosphere is measured in terms of :
1. Dalton units
2. Svedberg units
3. Monomeric units
4. Dobson units
Snow-blindness in Antarctic regions is due to:
| 1. | Inflammation of cornea due to high doses of UV-B radiation |
| 2. | High reflection of light from snow |
| 3. | Damage to the retina caused by infra-red rays |
| 4. | Freezing of fluids in the eye because of the low temperature |
Which of the following protocols did aim for reducing the emission of chlorofluorocarbons into the atmosphere?
1. Geneva protocol
2. Montreal protocol
3. Kyoto protocol
4. Gothenburg protocol
Which of the following statements about ozone is correct?
1. Tropospheric ozone protects us from UV radiation
2. Stratospheric ozone is 'bad'
3. Tropospheric ozone is 'good'
4. Stratospheric ozone protects us from UV radiation
1. Carbon
2. Cl
3. Fe
4. Oxygen
2. ammonia
3. methane
4. nitrous oxide
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