Match the method to increase intensity with its correct exercise category.
1. add more time to your workout.
2. flex and relax the muscle.
3. increase the amount of weight used.
cardiovascular
flexibility
resistance

1. Add more time to your workout: Cardiovascular

2. Flex and relax the muscle: Flexibility

3. Increase the amount of weight used: Resistance.

Explanation:

Cardiovascular activity is related to exercises that asselerate the heart rate and the breating. Sports such as running, jumping, cycling involves this activities. It is trainning the body so it can manage the heart rate to asselerate mantaining normal ventilation.

Flexibility is being able to streach, to exercise the movement of joints and limbs.

Ristance is being able to handle weight when exercising, this imporves the muscular strainght and endurance.