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प्रश्न
Explain the term ‘air pollution’, with reference to air quality. State the sources of a few main pollutants.
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उत्तर
Air pollution:
Mixing of products (elements) from natural sources and man made sources to air, to make it unclean is called air pollution.
The various sources of air pollution are:
| Natural Sources | Pollutant Released |
| (i) Decay of animal and vegetable matter | H2S, SO2 |
| (ii) Volcanic eruption | CO, SO2, H2S |
| (iii) Lightning discharge | Oxides of nitrogen |
| Man made sourses | Pollutants released |
| (i) Burning of fuels | CO, CO2, SO2 |
| (ii) Chemical industries | SO2, SO3, NO, NO2, CO, H2S |
| (iii) Iron and steel industries | CO2, CO, SO2 |
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संबंधित प्रश्न
Match the following :
| Column A | Column B |
| (a) Global warming | 1. Hydrated ferric oxide |
| (b) Acid rain | 2. Manganese dioxide |
| (c) Rust | 3. Carbon dioxide |
| (d) Catalyst | 4. Methane |
| (e) Photosynthesis | 5. Nitrogen Dioxide |
Give two uses of the following component present in air:
water vapour
How is air useful to agriculture?
What is air pollution?
Tick (√) the correct alternative from the choice given for the following statement.
Rust is
Tick (√) the correct alternative from the choice given for the following statement.
Fuels which do not leave any residue on burning are
State what do you understand by the term ‘air’. Explain its importance to mankind.
State the meaning of the term atmosphere.
Air has no ______ & ______.
Cool and soothing wind: Breeze.
uproot trees wind: ______.
