1. | In human eye, cornea absorbs UV-B. |
2. | Good ozone is found in stratosphere. |
3. | Thickness of ozone is measured in Dobson Units. |
4. | Ozone hole is particularly marked over equatorial regions. |
1. | It is an international treaty designed to protect the ozone layer. |
2. | It was signed in 1987. |
3. | It entered into force on 1 January 1989. |
4. | Same roadmap was developed for both developed and developing countries for reducing ozone depleting substances. |
I. | Enhanced carbon dioxide concentration in the atmosphere |
II. | Loss of biodiversity |
1. | it burns more efficiently than diesel |
2. | it cannot be adulterated |
3. | it cannot be siphoned off by thieves |
4. | setting up distribution points is very easy |
Column I | Column II | ||
a. | Eutrophication | i. | UV-B radiation |
b. | Enhanced greenhouse effect | ii. | Deforestation |
c. | Snow blindness | iii. | Nutrient enrichment |
d. | Slash and burn agriculture | iv. | Global warming |
1. | a-ii b-i c-iii d-iv |
2. | a-i b-iii c-iv d-ii |
3. | a-iii b-iv c-i d-ii |
4. | a-i b-ii c-iv d-iii |
1. | Electrostatic precipitator can remove over 99 percent of particulate matter present in the exhaust from a thermal power plant. |
2. | According to CPCB, particulate sizes of more than 10 micrometers are responsible for causing the greatest harm to human health. |
3. | Motor vehicles equipped with catalytic converters should use unleaded petrol. |
4. | CNG burns more efficiently than petrol or diesel. |