<span>There are three phases of clnic study and one post approval phase required by the Food and Drug Administration (FDA) for a New Drug Application (NDA). Phase IV which is a common stipulation by the FDA includes continual evaluation of the drug after approval has been granted.</span><span />
Answer:
it provides other readers with historical information
Explanation:
Answer:
pluto
Explanation:
the others are formed from other things
To protect them from ultraviolet rays from the sun.
