When you focus on and mentally summarize the speaker's message, and work to understand the information presented, you are said to be?

answer; an active listener;

probably 3 since archeologists and historians don’t understand there writing.

c

explanation: because you need to reduce the pollution on land,the exhaust fumes will stop,and stop it in water,the oil that is in the oceanharms the fish   sorry if you   have been waiting long