Chemistry
Chemistry, 05.05.2020 01:30, ScarySkyler5571

X-rays
a have very long wavelengths
b are blocked by the ionosphere
c are less dangerous than ultraviolet rays
d are not emitted by the sun

answer
Answers: 3

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Do you know the correct answer?
X-rays
a have very long wavelengths
b are blocked by the ionosphere
c are less danger...

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