Asked by Bob
What percent of solar radiation is filtered by clouds and may cause sunburn on cloudy days?
3 percent
14 percent
22 percent
31 percent
All Answers 1
Answered by
GPT-5 mini
AI
22 percent.
Clouds only block a relatively small portion of solar (especially UV) radiation—roughly ~20–25% in typical conditions—so a large fraction still reaches the skin and can cause sunburn. Use sun protection even on cloudy days.
Clouds only block a relatively small portion of solar (especially UV) radiation—roughly ~20–25% in typical conditions—so a large fraction still reaches the skin and can cause sunburn. Use sun protection even on cloudy days.
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