Question

Nitrogen oxides produced from the emission of automobiles and power plants are the source of fine air borne particles which lead to: 

A)  photochemical smog  

B)  dry acid deposition  

C)  industrial smog  

D)  wet acid deposition

Answer 1

The correct option is (B).

Explanation:

Depending on climatic conditions, tiny particles of these substances may be airborne for a while and then fall to earth as dry acid deposition. Most sulphur and nitrogen dioxides dissolve in atmospheric water to form weak solutions of H₂SO₄ and HNO₃. Winds can distribute them over great distances before they fall to earth in rain and now, this is called wet acid deposition.