Global warming is caused mainly by
A)greenhouse gases that accumulate in the atmosphere.
B)changes in the earth's orbit around the sun.
C)increases in the use of solar energy.
D)the collective body heat given off by increasing populations.

Question

Quizplus · Accepted Answer

Greenhouse gases, such as carbon dioxide and methane, trap heat in the atmosphere, leading to global warming. Changes in Earth's orbit, solar energy use, and body heat from populations have negligible effects on global warming compared to greenhouse gas emissions.

Global Warming Is Caused Mainly by