Question

2.
ng
by
3.
er
d. oxygen
Plants help to reduce excess of
a. Oxygen
b. Nitrogen
c. Hydrogen
d. Carbon dioxide
causes extensive harm to soil, water resources, forests and human health.
a.green house effect
b. acid rain
C. water
Our body contains more than
a. 70% of water
b. 150% of water
c. 30% of water
d. 90% of water
Different materials are carried by
b. rain
ed
4.
ad
BY
5.
he
a. wind
d. water
c. air​

Answer 1

Answer:

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Answer 2

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