I believe it’s A. That sounds right to me
Emerging diseases are those whose incidence in humans has increased in the past 2 decades or threaten to increase in the near future. Re-emerging diseases are are diseases that reappear after they have been on a significant decline.
Hi !
Which one of the following types of physical activity best represents vigorous-intensity aerobic activity?
<span>A. Brisk walking </span>
This depends on which organs we're talking about. A mentally ill person or a drug abuser can still have completely healthy lungs, depending on the type of drugs the drug user was taking. The same goes for the heart and other internal organs. If the lifestyle of the mentally ill person or the drug abuser were such that their internal organs suffered, then the answer would be no.
Well first off, If i had been waiting for three hours to get one question answered, I would have looked it up o. Google lolz
secondly, a static excersise is an exercise you don't necessarily need to physically do anything, like flexing a muscle or moving an arm, a dynamic excersise you would generally need to actually get active, go do something, take a jog or do some push ups.
hope that clears the confusion!