The Great Lakes of the eastern United States and Canada occupy former river valleys that were vastly enlarged and deepened by glacial erosion

a. True
b. False
Indicate whether the statement is true or false


True

Environmental & Atmospheric Sciences

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Teratogens

A. are fatal to humans in low doses. B. cause birth defects. C. are harmful largely as allergens. D. cause mutations. E. are transmitted genetically.

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Proconsul was a dryopithecine. Indicate whether the statement is true or false

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An example of a precious metal is ____

A)platinum B)copper C)plutonium D)mercury E)uranium

Environmental & Atmospheric Sciences

Which nation has accepted the highest total number of migrants, taking in an estimated 140,000 alone in 2016?

A) Denmark B) Italy C) Belgium D) Ireland E) Germany

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