How does arithmetic density affect people who live in an area?

Describe at least three examples of how people and wildlife have adapted to their environments in the middle east.

What type of aid does nigeria receive? short term, tied, voluntary, bilateral, multilateral or long-term?

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