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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
The gases which cause acid rain are
विकल्प
sulphur dioxide and oxygen
nitrogen and oxygen
carbon dioxide and water vapour
nitrogen dioxide and sulphur dioxide
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उत्तर
nitrogen dioxide and sulphur dioxide
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संबंधित प्रश्न
What is greenhouse effect?
Fill in the blank:
_____________ discovered the oxygen gas.
Give two uses of the following component present in air:
oxygen
Name two air pollutants which affect our health.
Tick (√) the correct alternative from the choice given for the following statement.
Respiration
Give a brief account of the discovery of air and the scientists involved.
State the meaning of the term atmosphere.
Draw a neat labelled diagram for the following experiment.
To demonstrate the burning of sulphur in a jar of oxygen.
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
Air is a ______ of some gases.
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 |
