The picture below shows the structure of one type of organic molecule. How many carbon atoms does this molecule contain?
A.
8
B.
10
C.
7
D.
6

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

Common symptoms of an iron-defiency anemia include muscle weakness shortness of breath and lightheadedness why does iron deficiency causes these symptoms

9. the history of life on earth is recorded in