Question

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

Explanation:

Walking is a healthy aerobic activity, exercising more than 60 minutes a day can be beneficial with proper rest, and being a strict vegetarian can be a healthy diet with proper planning. However, 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