Question

which activity is a risk to ones health?

exercising more than 60 mins a day.

using walking as ones sole aerobic activity

being a strict vegetarian

not wearing a seatbelt

Answer 1

Not wearing a seatbelt.

Answer 2

Not wearing a seat belt, because if you're in a car crash and not restrained by a seatbelt, you can be fatally injured and even could die.