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प्रश्न
Name two air pollutants which cause global warming.
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उत्तर
Two air pollutants that cause global warming are:
- CARBON DIOXIDE (CO2)
- METHANE (CH4)
APPEARS IN
संबंधित प्रश्न
Discuss harmful effects of greenhouse effect.
What do you observe when Carbon dioxide gas is passed through lime water.
State four steps to be taken to control air pollution.
Describe a simple experiment with the help of a diagram to show that Air occupies space
State whether the following statement is true or false.
The pressure exerted by air is called atmospheric pressure.
How is light scattered by the air?
Explain Lavoisier’s experiment which provided evidence to the discovery of components in air.
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 |
Explain the following observations very briefly
A firki does not rotate in a closed area.
Explain the following observations very briefly
The arrow of weather cock points towards a particular direction at a particular moment.
