The atmosphere becomes opaque to infrared radiation when it
A)increases in temperature.
B)contains excess water vapor and carbon dioxide.
C)radiates high-frequency radiation.
D)none of the above

Question

Quizplus · Accepted Answer

The presence of excess water vapor and carbon dioxide in the atmosphere can absorb and trap infrared radiation, making the atmosphere opaque to it. This is known as the greenhouse effect, and contributes to the warming of the planet. Increase in temperature or radiating high-frequency radiation does not necessarily make the atmosphere opaque to infrared radiation.

The Atmosphere Becomes Opaque to Infrared Radiation When It