The gravitational potential energy of the ball decreases as it rolls down the hill while the gravitational kinetic energy of the ball increases due to its acceleration in velocity.
That would be A.
Cells have specific receptors for different hormones that allow the intake of them.
They respire and give off c0^2
There are so many examples for that in different areas, like TPBA experiment carried out in our lab recently.Here's one link: http://www.alfa-chemistry.com/tpba-cas-172285-72-2-item-294462.htm
Answer - Yes! of course. For better outlook you want to be in a city like Miami, FL U.S or someone populated cause that is where your able to find patients in need of recover. Other then that we will always need occupational therapy assistant because its crucial to the recover with some help and maintenance.
Reasoning - It is in fact true because in a city you can find a populated are that probably fractured their hand and needs some assistant for help recovery if the main doctor is not there.