Multiple Choice
The graph shown plots average ocean temperature, with two different estimates, using different methods. What has been the long-term trend over time? 
A) Ocean temperature has stayed the same since Earth formed.
B) Ocean temperature has increased since Earth formed.
C) Ocean temperature has fluctuated wildly, and no discernable trend can be found.
D) Ocean temperature has decreased since Earth formed.
Correct Answer:
Verified
Correct Answer:
Verified
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