Question

which activity is a risk to one’s health? exercising more than 60 minutes a day not wearing a seatbelt using walking as one’s sole aerobic activity being a strict vegetarian

Explanation:

Exercising over 60 minutes a day can be healthy, walking as sole aerobic activity is okay, and being a strict vegetarian can be nutritionally managed. Not wearing a seat - belt increases the risk of injury or death in a vehicle accident, which is a significant health risk.

Answer:

not wearing a seatbelt