Why will India and China be the two nations that will define the era of the megacity? What challenges might these new megacities face? What effects might they have on global economics and the global balance of power? (Write in paragraph please)

If scientists only detect p waves in a certain layer of earths interior what does that tell us?

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

The body paragraphs in an informative essay should include clear examples. a thesis statement. restated evidence. a clear direction.