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प्रश्न
State whether the following statement is true or false. If false, correct them.
Air does not occupy any space.
विकल्प
True
False
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उत्तर
False
Explanation:
Air does occupy space.
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संबंधित प्रश्न
Match the statements in Column A, with those in Column B.
| Column A | Column B |
| 1. Largest Constituent of air, which dilutes the activity of oxygen. | (a) Oxygen |
| 2. A gas used for filling weather observeation balloons. | (b) Carbonic acid |
| 3. An acid formed by the dissolution of sulphur dioxide gas in water. | (c) Sulphuric acid |
| 4. An acid formed by the dissolution of carbon dioxide in water. | (d) Helium |
| 5. A gas vital for respiration. | (e) Nitrogen |
State two similarities and two differences between respiration and burning.
Name three greenhouse gases.
Write ‘true’ or ‘false for the following;
Air is a compound.
What is the importance of air in transmission of sound?
Name the important scientists and their studies which led to the discovery of the components of air.
What is wind energy?
Mention two uses of air.
The composition of air is always exactly the same.
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
The ______ makes the windmill rotate.
