What is the source of acid rain?
A) Acid rain is from dissolved carbon dioxide.
B) All rain is acid rain because rain has a pH is less than 7.
C) Rain is normally basic, but depending on the weather it can get slightly acidic.
D) All rain is acid rain because rain has a hydronium ion concentration greater than 10-7 M.
E) none of the above
Question 2
Why might an area with a large amount of limestone (CaCO3) be less susceptible to acid rain?
A) The acid in the rain is neutralized by the natural base in the limestone.
B) The rain travels quickly through the porous limestone and therefore the rate of reaction is slower.
C) Limestone is degraded by acid rain and therefore acid rain has the same damaging effects.
D) Only acid rain made from sulfur compounds reacts with the limestone.
E) none of the above
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