The incorrect statement(s) among (a) – (d) regarding acid rain is (are) :

a. It can corrode water pipes.

b. It can damage structures made up of stone

c. It cannot cause respiratory ailments in animals

d. It is not harmful to trees

The concept used: Acid rains can cause respiratory ailments in animals and are harmful to trees. Detailed explanation: Animals may experience respiratory issues from acid rain, which is equally bad for plants and trees. Among the range of airway illnesses associated with large animal confinement farming, the upper respiratory disorders are rhinitis, sinusitis, and mucous membrane inflammation syndrome. Allergic and irritating rhinitis symptoms are most commonly reported. Thus, we can say that it is incorrect to state that acid rain is harmless to animals or trees.