How did the egyptians use technology to “tame” the nile river?

Most countries in the middle east must import a majority of their a. gasoline b. oil c. food d. water

Me plzzz what is the ratio of water than falls on land as compared to the amount that falls onto the oceans? what role do clouds play in regulating earth’s energy balance? me plzzz

In the following diagram, four different index fossils are labeled: which of the labeled fossils comes from the oldest organism? a b c d