Which of the following is CORRECT regarding Arctic sea ice?
A) Until recently, seasonal variations in sea ice extent were rare.
B) In the summer, most to all sea ice melts, only to refreeze in the winter. However, less water has been refreezing over the past decade.
C) Summer sea ice reached its minimum extent in 2001 and has gradually increased since then.
D) Since 1979, summer sea ice minimum extent and winter sea ice maximum extent have declined.
Question 2
In which of the following regions would one likely NOT find a tropical rain forest?
A) Equatorial Africa B) The Amazon region in South America
C) The Pacific Northwest in the United States D) Southeast Asia
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