How is human eyesight related to the electromagnetic spectrum?
A- human eyes can only detect the portions of the spectrum that have the lowest frequencies
B- human eyes can only detect the portions of the spectrum that have the highest frequencies
C- human eyes can only detect the visible light portion of the spectrum
D- human eyes can detect all parts of the spectrum
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How is human eyesight related to the electromagnetic spectrum?
A- human eyes can only detect the p...
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