Question

the main idea of the passage is that ultraviolet radiation can harm skin. which two sentences have details that support this main idea? \anytime you are outside, you are being exposed to ultraviolet radiation from the sun.\ \it can happen even when it’s cloudy.\ \uv rays also increase the risk of skin cancer.\ \uvb rays cause sunburn. they are also carcinogenic.\

Explanation:

To support the main idea that ultraviolet radiation can harm skin, we need sentences that describe how UV harms the skin.

• "UV rays also increase the risk of skin cancer." explains a harmful effect (skin cancer) of UV rays.
• "UVB rays cause sunburn. They are also carcinogenic." explains two harmful effects (sunburn and being carcinogenic) of UVB rays, which are a type of ultraviolet radiation.

The other sentences ("Anytime you are outside, you are being exposed to ultraviolet radiation from the sun." and "It can happen even when it’s cloudy.") only talk about exposure to UV, not the harm it causes.

Answer:

• "UV rays also increase the risk of skin cancer."
• "UVB rays cause sunburn. They are also carcinogenic."