The density decreases because you are coming closer to the atmosphere and away from the center of the earth
Beneficence is the practice of offering selfless help to others. Medical and health practitioners are called upon by ethicists to uphold a high degree of commitment to helping other, and refraining from causing harms to others as well as rescuing their patients if they are in dire need of their special skills in treatment and medicine. the practitioners are expected to adhere to acts that brings more benefit to people, their patient and society at large.
In a scientific it would be called a satellite, don't question it.<span />
Answer is B. The length of a day on mercury is much longer than Earth
