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प्रश्न
State four steps to be taken to control air pollution.
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उत्तर
Four steps are taken to control air pollution:
- Tall chimneys are installed in factories and powerhouses so that smoke and gases rise high and get diluted.
- GROW more tall trees to absorb CO2 Also plants help in bringing rains.
- Use unleaded petrol and CNG in all public transport vehicles
- Industries should be located far away from residential areas.
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संबंधित प्रश्न
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| Column A | Column B |
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| (b) Acid rain | 2. Manganese dioxide |
| (c) Rust | 3. Carbon dioxide |
| (d) Catalyst | 4. Methane |
| (e) Photosynthesis | 5. Nitrogen Dioxide |
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Rust is
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| Column I | Column II | ||
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| (b) | Mountaineers | (ii) | Sailing yacht |
| (c) | Fine hair inside the nose | (iii) | Oxygen cylinders |
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