Explanation:
H2O is water and compound is an opposite of elements
I'm not completely sure but I think the answer would be c
Answer;
-Change in a population through genetic variation over time.
Explanation;
-Evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. It is the process of genetic change from one generation to the next and may be caused by several aspects including mutation, natural selection, genetic drift, thought and technology.
The answer is 4 atoms exist in the products of this reaction.(that's what I got)
