Explain why there is a growing concern over the physical fitness of children and adolescents.

A combination of poor nutrition and a sedentary lifestyle are leading to greater occurrences of obesity in children and adolescents.

Explanation:

Hope it helped!

The incidence of obesity in children and adolescents has increased over the years as more children lead sedentary lifestyles coupled with poor nutritional intake. More children spend time watching television or playing video games than before, which is taking the place of physical activity. Children should get at least one hour of physical activity each day, and many children are not getting that amount. This can lead to both present and future health concerns.

Explanation:

answer; (d) braking faster then cars;

out of the choices i'd say d the ability to set goals, mainly because to desire to continue you need motivation but it isn't motivation in that part, but setting goals means you have an endgame and you want to reach it which sums up motivation.