An unusual aspect of the recent rise in atmospheric CO₂ levels is that A) scientists have not been able to determine how it is happening. B) CO₂ reacts so quickly with other compounds that this increase should not be happening. C) it has happened relatively slowly. D) it has happened relatively rapidly.

Question

Quizplus · Accepted Answer

The question states that there has been a "recent rise" in atmospheric COS levels, implying that this increase has occurred relatively rapidly. Therefore, choice D is the best answer.

An Unusual Aspect of the Recent Rise in Atmospheric CO2

An Unusual Aspect of the Recent Rise in Atmospheric CO₂