2: The top layer of ocean water that extends to 300 m below sea level is called the
a. deep zone
b. surface zone
c. Gulf Stream
d. thermocline

Don’t use up to much of them it leads to pollution

A,b,c is the answer to the question

Answer were lower;

Historians are researchers of the past or people who understand the history of people. with this field, they must possess qualities such as being unbiased, patient, efficient reader, has a knack for logic and critical thinking and reasoning, disciplined, open-minded, resourceful, with good analytical ability, good reasoning skills and problem solving!