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Oxygen depleted zones form around the world,occurring mostly in ____________________ waters and in landlocked seas.
Q6: In the United States,fine-particle pollution,mostly from older
Q12: What is an argument against the use
Q15: According to the _,when a physical or
Q30: Tapping just 2% of the hot,dry rock
Q31: The Clean Water Act of 1974 requires
Q38: Natural causes of _ include volcano emissions,lightning,and
Q39: Research indicates that the BPA in plastics
Q39: The ozone layer surrounding the earth is
Q46: During this century,scientists expect to find many
Q81: Why would there be fewer organisms at