Before the Industrial Revolution, the flux of carbon from the terrestrial to the atmospheric pools _______ the flux in the opposite direction. Today, the flux of carbon from the terrestrial to atmospheric pools _______ the flux in the opposite direction.
A) exceeded; exceeds
B) exceeded; is about equal to
C) was about equal to; exceeds
D) was about equal to; is less than

Question

Quizplus · Accepted Answer

Before the Industrial Revolution, the carbon fluxes between terrestrial and atmospheric pools were roughly balanced. Today, due to human activities like burning fossil fuels and deforestation, the flux from terrestrial to atmospheric pools exceeds the flux in the opposite direction.

Before the Industrial Revolution, the Flux of Carbon from the Terrestrial