I think the water changes the earth's surface by making the flood come which is how earthquake happen and with earthquake happening, the volcano will erupt.
Answer:
Well since we dont have the text ill just try and do this the best as possible
Explanation:
Gorillas and humans are extremely similar. We are both primates and we have similar features. However, we evolved from a different kind of primate than gorillas.
I hoped this helped a little bit
Gradually as the result of many intermediate steps is my answer because as life on Earth for example started off with simple atoms making molecules, and as the time went past more complex compounds were be produced. And from there later on unicellular organisms started appearing. Nothing in evolution that I know of happens in a short time, at least from the human perspective.