Used to define and identify geological times.<span />
Answer:
b
Explanation:
Cellular respiration; complementary reaction to photosynthesis, because it's the reaction that cells use to break down glucose molecules and release atp.
Sand and glass have different chemical formulas, so that means that the atoms are rearranged and this is a chemical reaction.
Because by damaging capsids, there is no place for the bad DNA to be stored. So the drug destroys the DNA so no more of the virus can be stored in the body.
