What percentage of visible light is stated to account for natural sunlight?

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Multiple Choice

What percentage of visible light is stated to account for natural sunlight?

Explanation:
Visible light is just one part of the sun’s spectrum. Sunlight includes visible wavelengths, plus infrared and ultraviolet radiation. In skincare and dermatology contexts, the visible portion is commonly cited as about 35% of natural sunlight. This figure reflects the proportion of energy the eye can see and is useful for understanding how visible light can affect the skin, not just UV. The other options are inconsistent with standard sun-energy distributions: 10% is too small, 50% overstates the share of visible light, and 85% would imply most energy is visible light, which isn’t correct.

Visible light is just one part of the sun’s spectrum. Sunlight includes visible wavelengths, plus infrared and ultraviolet radiation. In skincare and dermatology contexts, the visible portion is commonly cited as about 35% of natural sunlight. This figure reflects the proportion of energy the eye can see and is useful for understanding how visible light can affect the skin, not just UV. The other options are inconsistent with standard sun-energy distributions: 10% is too small, 50% overstates the share of visible light, and 85% would imply most energy is visible light, which isn’t correct.

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