The clock on a rock is set as soon as it begins to erode true or false?

The sun's parallax would be 180 degrees, greater than which you can't get.  so a. would be your anwser 

It is the second answer

Answercompass direction;

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!