Which of the following wavelength regions MUST be observed from space because almost no energy in this region reaches the ground?
A) radio waves
B) infrared radiation
C) X-rays
D) visible light

Question

Quizplus · Accepted Answer

X-rays have very high energy and short wavelengths, which means almost no energy in this region reaches the ground and they are absorbed by Earth's atmosphere. Therefore, X-rays must be observed from space using telescopes and other instruments.

Which of the Following Wavelength Regions MUST Be Observed from Space