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प्रश्न
How is air useful to agriculture?
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उत्तर
Air speeds up drying up of agricultural products like grains, pulses fruits, etc. Air helps in the pollination of flowers and dispersal of seeds.
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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 observation balloons. | (b) carbon acid |
| 3. An acid formed by the dissolution of sulphur dioxide gas in water. | (c) Sulphur acid |
| 4. An acid formed by the dissolution of carbon dioxide in water. | (d) Helium |
| 5. A gas vital for respiration. | (e) Nitrogen |
What is wind?
Give two uses of the following component present in air:
oxygen
Tick (√) the correct alternative from the choice given for the following statement.
Rust is
Name the following.
Inert gases in the air
The capacity of air to hold moisture depends upon the ______ of the air.
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.
Fill in the blank:
The gas evolved as a product of combustion as well as respiration is ______.
Which of the following statements is incorrect?
