NSES Content Standard F
Science in Personal and Social Perspectives: Natural and human-induced hazards Grades 9-12, page 198 Normal adjustments of earth may be hazardous for humans. Humans live
at the interface between the atmosphere driven by solar energy and the
upper mantle where convection creates changes in the earth's solid crust.
As societies have grown, become stable, and come to value aspects of the
environment, vulnerability to natural processes of change has increased.
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