<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:
Clean energy sources have minimal impact on the environment and come from what resources?
Wind energy (renewable energy) is one of the cleanest and safest energy source which has minimal impact on the environment and it comes from wind
Explanation:
Unimportant , the body engind
It has been repeatedly tested and is widely accepted.
this should help answer your question
