The "background" species extinction rate:
A) Estimates how quickly species disappeared before human intervention
B) Measures today's extinction rate of plants
C) Measures today's extinction rate of animals
D) Estimates of how many extinctions humans are causing
E) All are correct
Correct Answer:
Verified
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Q17: Which of the following is not an
Q18: The main culprits in the thinning of
Q19: Which of the following has contributed to
Q21: Why is deforestation often associated with extreme
Q22: Release of sulfate and nitrate during the
Q23: The lowest part of Earth's atmosphere is
Q24: The current extinction rate of vertebrates is
Q25: Greenhouse gases block:
A)Carbon dioxide escape from the
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