Acid rains are produce by :

Options

A. excess `NO_(2)` and `SO_(2)` from burning fossil fuels
B. excess production of `NH_(3)` by industry and coal gas
C. excess release of carbon monoxide by incomplete combusiton
D. excess formation of `CO_(2)` by combusion and animal respiration.

Answer

A

Explanation

When fossil fuel burnt in automobile engines different oxides like `NO, NO_(2), SO_(2), SO_(3)` are produced. In the presence of moisture these oxides convert in the acids . These acids come down from the atmosphere in the from of rain, called acid rain.
`S("from fossil fuel")+O_(2) rarr SO_(2)`
`SO_(2)+O_(3)rarr SO_(3)+O_(2)`
`SO_(3)+H_(2)O_(2) rarr H_(2)SO_(4)`
`SO_(3) + H_(2)O_(2) rarr H_(2)SO_(4)`
`2NO_(2)+H2O rarr HNO_(3)+HNO_(2)`.