How does the body increase the amount of oxygen to the muscles during exercise? by exercising longer by breathing faster by relaxing by breathing through your nose

The body increases the oxygen to the muscles by increasing the respiratory rate (breathing faster). Along with more rapid breathing, the body also dilates the blood vessels and increases the heart rate to speed the delivery of the oxygenated blood to the muscles.

Isn't the human body just awesome!!

Idon’t really understand your questions