Question

What is the main difference between cardio and strength-training activities? A. Cardio activities increase your physical strength, while strength-training activities work your heart and lungs. B. Cardio activities work your heart and lungs, while strength-training activities strengthen your muscles. C. Cardio activities require short bursts of energy, while strength-training activities strengthen your body over long durations. D. Cardio activities improve your joints' range of motion, while strength-training activities work your heart and lungs.

Answer 1

B

Step-by-step explanation:

Answer 2

B: Cardio is really to improve your circulatory and etc while strength that's common sense

Step-by-step explanation: