Since the industrial revolution, the Earth's average surface temperature has
Answer
a. risen about 1 K.
b. has risen about 3 K.
c. has risen about 5 K
d. Has not changed significantly.
Answer
a. risen about 1 K.
b. has risen about 3 K.
c. has risen about 5 K
d. Has not changed significantly.
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1 answer
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1 answer