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trangldtruong trangldtruong
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6 years ago
Infrared waves are often called heat waves because they
A) emanate from relatively hot sources.
B) consist of frequencies lower than those of visible light.
C) induce resonance of molecules in the skin that becomes thermal energy.
D) are absorbed rather than reflected by the skin.
E) are the predominant waves emitted by the Sun.
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6 years ago
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6 years ago
Such an awesome helper!
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