What is visible light? A. The only part of the EM spectrum that CAN'T be seen by humans. B. The highest energy level on the electromagnetic spectrum. C. The lowest energy on the electromagnetic spectrum.

What is visible light? A. The only part of the EM spectrum that CAN'T be seen by humans. B. The highest energy level on the electromagnetic spectrum. C. The lowest energy on the electromagnetic spectrum. D. The only part of the EM spectrum that CAN be seen by humans.

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