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प्रश्न
State the meaning of the term atmosphere.
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उत्तर
The atmosphere is a layer that extends about 300 kms above earth’s surface.
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संबंधित प्रश्न
Discuss harmful effects of greenhouse effect.
Write the chemical name of Lime water
Name two important processes supported by oxygen present in air.
Name three greenhouse gases.
What is meant by the term ‘atmosphere’? State the role played by the atmosphere for the survival of mankind.
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
Air is a mixture and not a compound since the components of air cannot be separated by physical methods.
Name the following.
Inert gases in the air
Explain Lavoisier’s experiment which provided evidence to the discovery of components in air.
State whether the following statement is true or false. If false, correct them.
Air does not occupy any space.
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 |
