The concern about global warming is directly related to increased levels of what chemical in the atmosphere?
A) mercury
B) carbon dioxide
C) sulfur oxide
D) nitrogen oxide
E) chlorofluorocarbon

Question

Quizplus · Accepted Answer

Increased levels of carbon dioxide in the atmosphere are directly related to global warming. Carbon dioxide is a greenhouse gas that traps heat in the atmosphere, leading to rising temperatures on Earth.

The Concern About Global Warming Is Directly Related to Increased