The basic idea underlying cardiorespiratory or aerobic training is to place greater demands on the than what’s required during rest.
a. muscles
b. lungs
c. heart
d. arteries

answer:

noting will happen take it easy ..

explanation:

don't be too much serious or worried nothing will happen to you .

drink a glass of water and maybe . just keep on roaming for a while so that the water is absorbed easily and don't forget to drink plenty of water .okk don't worry you will be fine

risky behaviors. many behaviors are risky for your health and happiness. the main hazards include using tobacco, alcohol, and sexual activity.

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