A) Electrochemical
B) Photochemical
C) Both a and b
D) None of these
Correct Answer: C
Solution :
With the help of lightning (electro-chemical) and high energy radiations (photochemical reactions), a small quantity of nitrogen combines with\[{{O}_{2}}\]to form nitrogen oxides that are washed down with rain water.You need to login to perform this action.
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