Answer:
A I guess is the answer for the question
<span>A dietary supplement is taken to supplement the diet and its deficiencies. It is not a complete nutritional diet and therefore, is not able to deliver all the required vital components of the nutrition. Dietary supplements should be taken high doses, as they poses harmful effects when taken for a prologed time, and without prescription. </span>
Answer:
Create an air gap to prevent backflow.
Explanation:
An air gap prevents contamination of the water because it creates a space between the water outlet and a contaminated source. So, if there is, for example, a decrease in the pressure that pumps the water to the faucet, the water the air gap will prevent the contamination of potable water and the cause of different illnesses.
The third option. Long period of uninterrupted low or moderate intensity physical activity.
