1) radiation from the earth's surface is
ultraviolet
short-wave
...
Biology, 11.12.2019 18:31 FailingstudentXD
1) radiation from the earth's surface is
ultraviolet
short-wave
long-wave
x-ray
2) x-rays
have very long wavelengths
are blocked by the ionosphere
are less dangerous than ultraviolet rays
are not emitted by the sun
Answers: 2
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