Solved

Compared to the Year 2000, How Long Will It Take

Question 11

Multiple Choice

Compared to the year 2000, how long will it take the atmospheric levels of CO₂ to double?

A) 10 years
B) 20 years
C) 50 years
D) by the end of the 21^st century
E) by the end of the 22^nd century

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