In the formation of earth's atmosphere throughout its history, each of the following gases have, at one time or another, been the dominant gas in the atmosphere, except
a) oxygen.
b) nitrogen.
c) water vapor.
d) carbon dioxide.

it would affect precipitation by causing flooding in some areas of the world due to climate increasing, causing the glaciers in the northern and southern pole of our planet to melt.

i wish you would have provided choices to simplify it and allow me to give an exact answer.

"d.) carbon dioxide and hydrogen sulfide"

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.