Ultraviolet radiation is hard to observe primarily because:
A) Earth's atmosphere easily absorbs it.
B) no space-based telescopes operate at ultraviolet wavelengths.
C) only the lowest-mass stars emit ultraviolet light.
D) very few objects emit at ultraviolet wavelengths.

Question

Quizplus · Accepted Answer

Earth's atmosphere absorbs most of the ultraviolet radiation, making it difficult to observe from the ground. This is one of the reasons why space-based telescopes like the Hubble Space Telescope are necessary to observe objects at ultraviolet wavelengths.

Ultraviolet Radiation Is Hard to Observe Primarily Because