What year did the paleolithic era start and end?

Using complete sentences, outline two specific examples of how technology advances make the world seem smaller.explain what it means to say the world is “shrinking”

What evidence does the writer give to support his argument about coral reefs? a) he speaks of the activities of coral polyps. b) he describes the composition of the great barrier reef. c) he emphasizes the ways in which coral reefs are fragile. d) he points out the ways that scientists do research on the reefs.

Name the two rivers that run through the fertile crescent. how were the rivers both positive and negative to societies of the fertile crescent?