Multiple Choice
The graph below plots average ocean temperature,with two different estimates,using different methods.What has been the 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 decreased since Earth formed.
D) Ocean temperature has fluctuated wildly, and no discernable trend can be found.
Correct Answer:
Verified
Correct Answer:
Verified
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