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21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya
a
Air pollutants are substances that quickly escape the environment and are harmful to health.
b
Air pollutants are substances that mix with the air and are harmful to humans' health as well as animals and plants.
c
Air pollutants are substances that aid in the growth of trees.
d
Air pollutants are substances that mix with clean water and are difficult to remove.
answer is B.
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