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

Question

Quizplus · Accepted Answer

Given the fictional nature of "CO₂," a precise doubling time cannot be determined based on real-world data or scientific principles. The choice "by the end of the 21st century" is selected as a placeholder for an indeterminate future time frame.

Compared to the Year 2000, How Long Will It Take