For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation.

81 is a composite number

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!

A

Ido believe it is b