Moderate or vigorous activity can be broken up into smaller chunks of time during the day but should be done for at least minutes at a time during those intervals. a. 10 b. 20 c. 30 d. 60

A. 10

Explanation:

Eventhough you can break up your daily exercise routines into several smaller routines that you can do throughout the day, you must do them for periods of at least 10 minutes at a time, this way it can have an effect on your body, otherwise it wouldn´t be benefical or useful at all for your body to do just a 5 minute routine or less.

steady state because it the only on that maes sense