Question

18. What is not related to an invisible threat known as
acid rain?
(1) Cocktail of H,SO, and HNO,
(2) Always effective in the form of wet deposition
only
(3) Causes leaching of essential minerals of soil
(4) Corrodes metals, marbles and stones​

Answer 1

Answer:

Option (b)

Always effective in the form of wet deposition only..