Melting permafrost might accelerate climate change because
A. carbon dioxide is trapped as water melts.
B. polar bears and other arctic species rely on permafrost.
C. sea levels will rise.
D. methane gas stored in the frozen ground will be released.
E. coral reefs rely on methane.
Answer: D
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A/an ________ is an interplanetary body that is composed of loosely bound rocky and icy
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