Multiple Choice
Over the past few centuries, human populations and their levels of resource use have exploded. This has led to an increasing loss of biodiversity, but the causes of that loss have changed over the years. Which factor is a much greater threat to biodiversity in the United States in the twenty-first century than it was in the previous two centuries?
A) Overharvesting
B) Climate change
C) Pollution from fossil fuels
D) Destroying ecosystems to develop farmland
Correct Answer:

Verified
Correct Answer:
Verified
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