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A person who is exercising vigorously breathes more deeply and rapidly than someone who is resting. Give TWO reasons why this is necessary.

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During physical exercise, more oxygen is used up and more carbon dioxide is produced leading to faster and deeper breathing.

Physical exercise is a state in which the muscles are flexed much vigorously leading to a faster heartbeat owing to a quicker rate of pumping of the blood by the heart.

There are two main reasons why a person engaging in physical exercise tends to breathe faster and more deeply;

  • The muscles tend to work harder during physical exercise hence more carbon dioxide is produced.
  • The body uses up oxygen more quickly leading to a greater demand for oxygen and thus a faster and heavier breathing rate results.

Learn more about physical exercise: https://brainly.com/question/1080637

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