Explanation:
The Phanerozoic eon is separated into three eras: the Paleozoic, Mesozoic, and Cenozoic eras
I’m pretty sure you just add AB to BC, since they are all points on a line, those two segments add together to get the value of AC. Therefore, 12+16= 28, so AC=28
Answer:
An estuary is a the mouth of a large river where the tide meets the stream.
Explanation: