Supports the national science education standards Unifying Concepts and Processes: Evolution and Equilibrium; Earth and Space Science; and Science in Personal and Social Perspectives as outlined by the National Academics of Science and endorsed by the National Science Teachers Association.
Carolrhoda Books,
图书
Winner, Cherie.
Winner, Cherie.
1999
Describes the forces of erosion as caused by glaciers, water, and wind, how they affect the earth's surface, and how their destructive effects can be prevented.
