Which of the following statements is true of UV-A and UV-B?
A) UV-A is more harmful to humans than UV-B.
B) UV-B is more harmful to humans than UV-A.
C) UV-A and UV-B are equally harmful to humans.
D) Neither UV-A or UV-B is harmful to humans.
E) UV-A is shorter in wavelength than UV-B.

Question

Which of the following  statements is true of UV-A and UV-B?
A) UV-A is more harmful to humans than UV-B.
B) UV-B is more harmful to humans than UV-A.
C) UV-A and UV-B are equally harmful to humans.
D) Neither UV-A or UV-B is harmful to humans.
E) UV-A is shorter in wavelength than UV-B.

Quizplus · Accepted Answer

UV-B is more harmful to humans than UV-A because it has a shorter wavelength and higher energy, which can cause sunburn, skin aging, and an increased risk of skin cancer. UV-A has a longer wavelength and lower energy, which can still cause damage to the skin but is less intense than UV-B.

Which of the Following Statements Is True of UV-A and UV-B