The main causes of acid rain are the presence of Sulphur dioxide \((SO_2)\) and Nitrogen oxides \((NO_x)\) in the atmosphere.
These pollutants are primarily released from industrial processes, vehicle emissions, and the burning of fossil fuels. When they combine with water
vapor in the atmosphere, they form sulfuric acid and nitric acid, which then fall to the earth as acid rain.
Consider the following statements:
(A) Availability is generally conserved.
(B) Availability can neither be negative nor positive.
(C) Availability is the maximum theoretical work obtainable.
(D) Availability can be destroyed in irreversibility's.