Dietary supplement fact sheets is hosted by a. food & drug administration d. national institute of health b. private agency c. center for disease control

The answer is d. National Institute of Health.

Explanation:

Knowing the information about supplements that you include in your daily diet is one of the most important functions of the institute of health due to it helps to control the safety information about all products you consume.

Other reason is that by law since 1994 it is required to define what is a dietary supplement which is basically a product that contains vitamins, minerals or other substances needed in a diet.

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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