Explain whether this event contributed to more centripetal or centrifugal forces

Why are mangrove swamps an important part of the ecosystem of west africa?

Which is a result of the emission from the use of fossil fuel

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.