Which of the Following Statements About Ultraviolet Radiation Is TRUE

question 31

Multiple Choice

Which of the following statements about ultraviolet radiation is TRUE?

• A) It's best to avoid outdoor activity in the late afternoon because the sun's rays are most intense after 3 p.m.
• B) Swimming is a good choice of outdoor activity because ultraviolet rays cannot penetrate water.
• C) Sand reflects ultraviolet radiation, so beach-goers need to wear sunscreen even if they sit under a beach umbrella.
• D) You do not need to wear sunscreen when outdoors at high elevations because the atmosphere at high altitude filters out most ultraviolet radiation.

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Devices designed to aid in finding one's way by indicating the direction in relation to the Earth's cardinal points.

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