This is a writing exercise for the student, and answers will vary.
Work Step by Step
Sample: Competitive Cal dreads turning 40, and wants to reach that milestone later than his twin sibling. Theoretically, where should he spend most of his time? a. On a high mountaintop b. In deep space c. Just outside the event horizon of a black hole d. Any of these The correct answer is c, just outside the event horizon of a black hole. Strong gravitation expands time intervals, i.e., it slows down the passage of time. Cal's biological clock would be in a strong gravitational field and would run more slowly than his twin's clock.