<span>A. can start in many different places on a sequence at the same time. </span>
Answer:
the real physical matter of which a person or thing consists and which has a tangible, solid presence.
Explanation:
I believe the correct answer is A) Silurian period occurred before the Neogene era, because the other answer are wrong.
Hadean eon ended before Silurian period.
Mesozoic and Permian era were after Silurian period.
