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प्रश्न
Name two air pollutants which cause acid rain.
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उत्तर
Two air pollutants that cause acid rain are:
- SULPHUR DIOXIDE (SO2) and
- NITROGEN DIOXIDE (NO2)
APPEARS IN
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 |
Write ‘True’ or ‘False’ in front of following statement.
Atmospheric nitrogen is directly absorbed by the plants to form plant proteins.
Write the chemical name of The white insoluble solid formed on the reaction of carbon dioxide with lime water.
Mention five causes of air pollution.
Give a brief account of the discovery of air and the scientists involved.
Name the important scientists and their studies which led to the discovery of the components of air.
Explain Lavoisier’s experiment which provided evidence to the discovery of components in air.
Explain the term ‘air pollution’, with reference to air quality. State the sources of a few main pollutants.
Fill in the blank:
A candle burns in a jar of oxygen, but gets extinguished in ______
Match the items of Column I with the items of Column II
| Column I | Column II | ||
| (a) | Weather cock | (i) | Gases and fine dust particles |
| (b) | Mountaineers | (ii) | Sailing yacht |
| (c) | Fine hair inside the nose | (iii) | Oxygen cylinders |
| (d) | Smoke | (iv) | Direction of air flow |
| (e) | Wind | (v) | Prevent dust particles |
