Which property would best distinguish sediment deposited by a river from sediment deposited by a glacier?

A) 1.mineral composition of the sediment
B) 2. amount of sediment sorting
C) 3. thickness of sediment layers
D) 4. age of fossils found in the sediment

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the national environmental policy act (nepa) is a united states environmental law that promotes the enhancement of the environment and established the president's council on environmental quality (ceq). the law was enacted on january 1, 1970. to date, more than 100 nations around the world have enacted national environmental policies modeled after nepa.