What spf sunscreen should you use to exercise outside? a. at least 15?

Atleast 15 spf

Explanation:

SPF can be defined as the sun protection formula which is applied on the part of the part of the body which is going to be exposed in the sun.

Before 15 minutes to going out in the sunlight, sun protection formula should be applied on the bare skin.

The Different types of SPF protects different percentage of sunlight and the body is protected from the harmful UV rays of the sun that tans the body, spoils the texture of the skin and protects from skin cancer.

A spf 15 will protect 93% of the sun rays falling on it which is good if going out for exercise.

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation: