From an overall perspective, A would be the best answer. Since the Nile River has always been one of the biggest rivers in history, it would most likely sustain life for the people. As well as the mediterranean, people for thousands of years relied on the Mediterranean Sea for their food and even their transportation.
The polar ice capes, the change in genetics of certain animal fossils (growing more or less hair, etc. etc.)
Answer:
Mountain, Canyon, Delta
Explanation:
The uppermost box would be mountain.
The box below that one would be canyon.
And the farthermost box to the right would be delta.
If you thought about it, changing those circles to make them 3D is like stacking layers on top as they get smaller, this would form something that looks like a mountain.
Water typically runs through a canyon and the lines appear to be separating for the water.
Deltas are wetlands that form from rivers emptying their water into another body of water. If you were to look up an image of a delta that would make it easier to understand, it also looks like what the image provided is trying to demonstrate.