Multiple Choice
About 55 million years ago, climate warmed. According to one model, surface water evaporated, and the salinity of seawater __________. This water __________ and __________ methane hydrates on the sea floor, leading to a/an __________ in global temperature.
A) increased, sank, melted, increase
B) decreased, sank, melted, increase
C) decreased, floated on the surface, melted, increase
D) increased, sank, froze, decrease
Correct Answer:

Verified
Correct Answer:
Verified
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