Question

which activity should be considered when thinking about sun safety?
researching the amount of sunscreen to apply to the skin
identifying fashion trends associated with sun protection
listening to a person discuss the discomfort of a sun hat
viewing ads that promote the attractiveness of tanned skin

Explanation:

Sun safety involves taking measures to protect the skin from harmful UV rays. Researching the amount of sunscreen to apply is a practical step in sun protection. Fashion trends (option 2) are more about style than safety. Listening to discomfort about a sun hat (option 3) doesn't contribute to safety knowledge. Ads promoting tanned skin (option 4) often encourage sun exposure, which is contrary to sun safety.

Answer:

researching the amount of sunscreen to apply to the skin