Question

question 17 (2.5 points)
which of the following is true regarding skin cancer and ultraviolet (uv) light?
a) wait until after 1 p.m. to be in the sun, when it is less intense
b) the incidence of basal and squamous cell carcinoma is on the rise
c) tanning beds are safe, as they do not emit uv rays
d) the skin needs exposure to the sun to manufacture vitamin k

Explanation:

• Option a: UV rays are most intense between 10 a.m. and 4 p.m., so waiting until after 1 p.m. is not a safe practice.
• Option b: The incidence of basal and squamous cell carcinoma has been increasing due to various factors like increased sun exposure, ozone layer depletion etc.
• Option c: Tanning beds emit UV rays (both UVA and UVB) and are not safe; they increase the risk of skin cancer.
• Option d: The skin needs exposure to the sun to manufacture vitamin D, not vitamin K.

Answer:

B. The incidence of basal and squamous cell carcinoma is on the rise