Several kinds of birds live on a cliff near the ocean. The cliff and the birds are an example of

how many times something comes -Rare- Maybe

Explanation:

the fossil record provides evidence of a common ancestor to many species.

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.