instruction:
Given a scientific question, generate a correct answer to it.
question:
What do you call any force that makes something move in a circle?
answer:
centripetal force

question:
What type of pressure is the pressure exerted by gas particles in earth's atmosphere as those particles collide with objects?
answer:
atmospheric pressure

question:
Chemical digestion in the small intestine cannot occur without the help of the pancreas and what bile-producing organ?
answer:
liver