Multiple Choice
Which statement most accurately represents the effect of human activities on Earth's climate?
A) All human activities are leading to increased warming of Earth's climate.
B) Some human activities are actually reducing the temperature of Earth,but on balance,human activity is leading to a warmer Earth.
C) Some human activities are leading to warming,while others are leading to cooling;at this point,the net effect is unclear.
D) Some human activities are actually increasing the temperature of Earth,but on balance,human activity is leading to a cooler Earth.
E) Human activity has no effect on Earth's temperature.
Correct Answer:

Verified
Correct Answer:
Verified
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