Which of the Following Is Correct Regarding Arctic Sea Ice

question 38

Multiple Choice

Which of the following is correct regarding Arctic sea ice?

• A) Until recently, seasonal variations in sea ice extent were rare.
• B) Summer sea ice reached its minimum extent in 2001 and has gradually increased since then.
• C) Since 1979, summer sea ice minimum extent and winter sea ice maximum extent have declined.
• D) 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.

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