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When did scientists begin to notice changes in ecosystems as a result of climate change?
Q7: Which processes regulate the natural carbon cycle
Q9: In a water molecule,hydrogen atoms are bonded
Q11: Which might NOT be considered a keystone
Q15: Certain plants produce runners or bulbs as
Q16: Many desert plants close their stomata during
Q51: Food passes through which of the following
Q59: Considering that the world produces enough food
Q67: The ideal temperature for the function of
Q74: Organic molecules contain at least<br>A) three carbon
Q92: The bond between the oxygen atom and