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T2 CH4 Air — Science STD 6 — Question

Tamilnadu BoardEnglish MediumSTD 6ScienceT2 CH4 Air3 Marks
Question
Why is atmosphere essential for life on earth?
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Answer

The atmosphere is essential for life because it maintains an appropriate climate for the maintenance of life by carrying out the following activities:
  1. The atmosphere keeps the average temperature of the Earth fairly constant during the day time.
  2. It prevents a sudden increase in temperature during the day time.
  3. It also slows down the escape of heat from the surface of the Earth into outer space during the night time.

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