Multiple Choice
Which best describes global average air temperatures worldwide?
A) Global average temperatures have appeared to stabilize after a century of increase.
B) Global average temperatures are at present demonstrating no apparent trend one way or another.
C) Global average temperatures are being influenced by human-induced changes in the greenhouse effect.
D) Global average temperatures are generally lower than 20 years ago.
Correct Answer:

Verified
Correct Answer:
Verified
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