<span>Of the physical activities listed , which is the most Vigorous ?
C. playing a game of vollyball
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Bacteria grow most rapidly in the range of temperatures between 40 °F and 140 °F, doubling in number in as little as 20 minutes. This range of temperatures is often called the "Danger Zone.
A person is considered obese if his/her body weight is 20% over than his/her ideal body weight.
Menstruation? Idk if that is right, but it sounds like someone started their period.