One of the principal ways lakes suffer from acid deposition (such as acid rain) is that .
a. rocks on the bottom begin to dissolve
b. plants grow excessively and choke other life
c. fish eggs die and fish populations fall as a result
d. all of these can happen in a lake from acid deposition.

Option (C)

Explanation:

Acid rain usually refers to a type of precipitation where the water is comprised of high amount of hydrogen ions. This allows the water to become acidic in nature. Acid rain has a pH value of less than 7.

This acid rain or the deposition of acid in the lakes has direct impact. This results in the decreasing number of fish eggs and also leads to the decreasing population of fishes. It is because lower pH value of water does not allow the fishes to hatch or it causes difficulty for their survival.

Thus, the correct answer is option (C).