Which of the following is not true of UV exposure?
A)UVA radiation accounts for about 95% of all UV radiation reaching the Earth's surface.
B)Only exposure to UVA is a concern,not exposure to UVB and UVC.
C)UV radiation is potentially harmful and individuals should take appropriate precautions depending on the UV index.
D)UV radiation varies spatially according to the season,local weather conditions,and overhead ozone depletion.
E)UVB alters plant physiology and can lead to decreased agricultural productivity.

Question

Quizplus · Accepted Answer

This statement is incorrect. While UVA radiation does account for a large portion of UV radiation reaching the Earth's surface, exposure to both UVB and UVC can also be a concern for human health. UVB is known to cause sunburn and skin cancer, while UVC is filtered out by the Earth's atmosphere and not typically a concern for human exposure.

Which of the Following Is Not True of UV Exposure