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D. Very short-answer questions
1. Where do dust particles enter the air from?
2. Which layer which protects the earth from the
ultraviolet rays of the sun?
3. Name the gases which trap ultraviolet radiations
in the atmosphere.
4. Name two sources of groundwater.
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Answers
Answered by
0
Answer:
ozone protect the earth from uv .
industrial, garbage and household land fills (sources of ground water)
ozone absorb uv
Answered by
0
Answer:
ans of 1, 2, 3 is ozone layer
ans 4 is tube well, well
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