How many times as great is the mass of earth as the mass of the moon? express your answer in scientific notation.

5.97 x 10^24 / 7.34 x 10^22= 8.13 x 10^1

Silent Spring is an environmental science book by Rachel Carson. ... It spurred a reversal in the United States' national pesticide policy, led to a nationwide ban on DDT for agricultural uses, and helped to inspire an environmental movement that led to the creation of the U.S. Environmental Protection Agency.