Answer:
Physical activity is any movement that is carried out by the muscles that require energy. ... Exercise is, by definition, planned, structured, repetitive and intentional movement.
Explanation:
Answer:
lens affect the light we see by the reflection across an object to bounce back to you eye.
If you have good cardio respiratory endurance, then you'll be able to do rigorous physical activity for longer amounts of time, because like other muscles in your body, the more you stretch them the stronger they get and the longer they would last.
Hope that helps and makes sense :)
A is the correct answer because that is the appropriate action to take