It is difficult to do infrared astronomy at sea level primarily because of what component in Earth's atmosphere?
A) chlorofluorocarbons (CFCs)
B) water vapor
C) ozone
D) carbon dioxide

Question

Quizplus · Accepted Answer

Water vapor in Earth's atmosphere absorbs and scatters infrared radiation, making it difficult to detect and study with ground-based observatories, particularly at sea level where the air is denser. This is why many infrared telescopes are located at high-altitude sites or above the atmosphere in space.

It Is Difficult to Do Infrared Astronomy at Sea Level