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प्रश्न
Take a squeezable bottle. Make a hole on the lid and close the bottle tightly. Bring the bottle near your face and press the bottle. What do you feel?
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उत्तर
Air will come rushing out of the bottle.
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संबंधित प्रश्न
What is greenhouse effect?
What do you observe when a beam of light is allowed to enter in a closed dark room through a small hole.
Define the following:
Respiration
Name the processes which maintain the balance between oxygen and carbon dioxide in the air. How is it done?
How is air useful to water boats?
How is air useful to scooters and cars.?
Name two air pollutants which affect our health.
Give a brief account of the discovery of air and the scientists involved.
Explain Lavoisier’s experiment which provided evidence to the discovery of components in air.
Wind does not help in the movement of which of the following?
