alleryStart learning →Why do X-ray telescopes orbit above Earth's air?
AThe ground is too warm for them
BX-rays only come from the Moon
CEarth's air blocks most X-rays
DThey are too tiny to stand
Answer & Solution
Correct answer: C. Earth's air blocks most X-rays
The atmosphere blocks most of the spectrum, including X-rays, so those telescopes must observe from orbit.
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