Which statement about ultraviolet radiation is true?

Question

Quizplus · Accepted Answer

Sand reflects ultraviolet radiation, increasing the risk for sunburn and other skin damage, so it is important to always wear sunscreen even when under shade at the beach. The other statements are false or misleading. Avoiding outdoor activity in the late afternoon is not enough to reduce exposure to harmful UV rays, as they can be strong at other times of the day as well. While water can provide some protection from UV rays, it is not enough to rely on alone. Sunscreen is also needed at high elevations, as UV radiation increases with altitude.

Which Statement About Ultraviolet Radiation Is True