I just bombed this test and i have 1 retake left. please help!!

How do you date a sample of rock that you suspect as being one of the earliest on earth

Explain the significance of thesaurus geographicus

Migration is a. the movement of organisms from a native location to a foreign location b. the movement of organisms from a foreign location to a native location the movement of organisms from their water supply to their food supply d. the seasonal movement of organisms between locations c. select the best answer from above