Scientists believe the scarps on mercury formed as a result of which process? a. plate tectonics b. volcanic eruptions c. bombardment by asteroids d. shrinking of the planet as it cooled

The increase of pollutants from in mexico has raised concerns about garage to health and the environment

India's population is made up of percent hindus.

Can someone me choose a broad topic and area of focus i am really doing this as a tally to see which one most people pick ok water pollution global warming endangered species atmosphere for the !