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प्रश्न
How is air useful to water boats?
एका वाक्यात उत्तर
उत्तर
Air helps the movement of water boats.
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संबंधित प्रश्न
Write ‘True’ or ‘False’ in front of following statement.
Atmospheric nitrogen is directly absorbed by the plants to form plant proteins.
State two similarities and two differences between respiration and burning.
How is air useful to windmills?
State four steps to be taken to control air pollution.
Name three greenhouse gases.
Water does not have a ______ but has definite ______ and ______.
Fill in the blank:
Nitrogen of the air is utilized by plants for formation of _____.
Mention two advantages of wind energy.
______ is important for all living creatures.
Match the following:
| 1. | Layer of air | a. | Hand fan |
| 2. | Electrical energy | b. | 21% |
| 3. | Nitrogen | c. | Windmill |
| 4. | Oxygen | d. | Atmosphere |
| 5. | Palm Trees | e. | 78% |
