What can you say about conditions in Germany and Indonesia based on their migration rates? (10 points)

5. what is a red giant? can our sun become a red giant? why or why not?

Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks

Where the main factor that enabled the growth of cities and civilizations was the existence of