The tide-gage record in New York City shows that the sea level over the last 100 years has
A) dropped by an average of 1.1 centimeters per year.
B) risen by an average of 1.1 centimeters per year.
C) dropped by an average of 3 millimeters per year.
D) risen by an average of 3 millimeters per year.
Answer: D
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