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प्रश्न
State whether the following statement is true or false. If false, correct them.
Air helps in the movements of sailing yachts and gliders but plays no role in the flight of birds and aeroplanes.
पर्याय
True
False
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उत्तर
False
Explanation:
Air helps in the movement of sailing yachts and gliders and also helps in the flight of birds and aeroplanes.
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संबंधित प्रश्न
Name three noble gases present in the air. State their one industrial use
Give the chemical name of rust.
Air is a mixture of many _______.
The constituent of air that supports combustion is _____.
_____ gas turns lime water milky.
Match the following.
| Nitrogen | Respiration in living animals |
| Oxygen | Fertilizer |
| Carbon dioxide | Refrigerator |
| Dry ice | Fire extinguisher |
“Air is not an elementary substance, but a composition”. Why?
______ is used as a substitute for compressed air in tyres.
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Nitrogen
On a Sunday morning Paheli’s friend visited her home. She wanted to see some flowering plants in the nearby garden. Both of them went to the garden. While returning from the garden they also observed some flowering plants on the road side. But to their surprise they found that the leaves and flowers of these roadside plants were comparatively very dull. Can you help them to know why?
