To be considered marine, a species must spend how much of its life in the marine environment?

A. 90 percent
B. 25 percent
C. 50 percent
D. 100 percent
E. 75 percent


Answer: C

Environmental & Atmospheric Sciences

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Indicate whether the statement is true or false

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How many counties (Number of Records) in the U.S. face some risk from

hurricanes? What will be an ideal response?

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After examining the graph depicting total MSW generation and per capita generation, the main conclusion one can make is ________

A) humans are not recycling as much as they did previously B) recycling of e-waste is having an effect C) personal reuse and recycling efforts are having an effect D) MSW generation continues to grow exponentially E) per capita generation continues to grow exponentially

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Earth and the Sun formed specifically from

A) unknown origins. B) other planets. C) the galaxy. D) a nebula of dust and gases.

Environmental & Atmospheric Sciences