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36 votes
36 votes
Which zone is the best place to build and strengthen your heart and lungs?

O A
Aerobic zone
OB
Warm up zone
O C. Anaerobic zone
OD.
Fat burning zone

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1 Answer

11 votes
11 votes

Answer:

The aerobic zone is a moderate to vigorous pace. It is the best place to build and strengthen your heart and lungs, as well as work on muscle endurance.

so A