NSES Content Standard F
Science in Personal and Social Perspectives: Natural and human-induced hazards Grades 9-12, page 199 Some hazards, such as earthquakes, volcanic eruptions, and severe weather,
are rapid and spectacular. But there are slow and progressive changes that
also result in problems for individuals and societies. For example, change
in stream channel position, erosion of bridge foundations, sedimentation
in lakes and harbors, coastal erosions, and continuing erosion and wasting
of soil and landscapes can all negatively affect society.
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