F Answer in a few sentences.
1. How does the atmosphere help in maintaining the right amount of heat on the earth?
2. How can we prove that air has weight?
3. How does a syringe work on the principle of air pressure?
4. Explain in brief the sedimentation process of removing impurities from water.
5. Why is it good to purify water that we get from taps?
THINK AND ANSWER
1. If we put a pinwheel in front of a running table fan, it starts rotating. Why?
2. Can we talk on the moon? If not, why?
3. Name the process that your mother uses for removing tea leaves from tea.
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Answers
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1
Answer:
I don't know
Explanation:
really I don't know
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