DeLucia and colleagues have shown that increasing carbon dioxide has led to increased NPP in a pine forest. If this result can be generalized, it suggests that forests could be a _______ of anthropogenic carbon and thus tend to _______ the greenhouse effect.
A) source; worsen
B) source; offset
C) sink; worsen
D) sink; offset

Question

Quizplus · Accepted Answer

Forests acting as a sink for carbon means they absorb more carbon dioxide, which can help offset the greenhouse effect by reducing the amount of CO2 in the atmosphere.

DeLucia and Colleagues Have Shown That Increasing Carbon Dioxide Has