The two ranges of electromagnetic radiation for which Earth's atmosphere is reasonably transparent are:
A) X-rays and visible light.
B) visible light and radio waves.
C) visible light and far-infrared radiation.
D) ultraviolet radiation and radio waves.

Question

Quizplus · Accepted Answer

Earth's atmosphere is reasonably transparent to visible light and radio waves. Visible light makes up a small portion of the electromagnetic spectrum, but it is the portion that our eyes can see. Radio waves have longer wavelengths and lower frequencies, allowing them to penetrate through the atmosphere with very little attenuation.

The Two Ranges of Electromagnetic Radiation for Which Earth's Atmosphere