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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1) radiation from the earth's surface is

ultraviolet

short-wave

...