Which term acts as a partial block against the cancer-causing rays of the sun?

Which term acts as a partial block against the cancer-causing rays of the sun?

• A. Allergy
• B. Gum disease
• C. Sunscreen
• D. Blood pressure

Answer: (C)

Sun exposure can increase the risk of skin cancer, so using a protective measure on the skin helps reduce that risk. Sunscreen acts as a partial block against the cancer‑causing rays by forming a barrier on the skin that lowers the amount of UV radiation that can penetrate and affect skin cells. Broad-spectrum formulas guard against both UVB rays (which cause sunburn and contribute to cancer) and UVA rays (which age skin and also contribute to cancer). The concept here is that sunscreen reduces, but does not completely stop, UV exposure, and SPF indicates how strong the protection is against UVB. The other options don’t relate to blocking sun rays: allergy is an immune response, gum disease is a dental issue, and blood pressure is a cardiovascular measure. Reapply sunscreen every two hours and after swimming or sweating for continued protection.

Sun exposure can increase the risk of skin cancer, so using a protective measure on the skin helps reduce that risk. Sunscreen acts as a partial block against the cancer‑causing rays by forming a barrier on the skin that lowers the amount of UV radiation that can penetrate and affect skin cells. Broad-spectrum formulas guard against both UVB rays (which cause sunburn and contribute to cancer) and UVA rays (which age skin and also contribute to cancer). The concept here is that sunscreen reduces, but does not completely stop, UV exposure, and SPF indicates how strong the protection is against UVB. The other options don’t relate to blocking sun rays: allergy is an immune response, gum disease is a dental issue, and blood pressure is a cardiovascular measure. Reapply sunscreen every two hours and after swimming or sweating for continued protection.