Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

The male reproductive system consists of structures that produce sperm and secrete testosterone.
What does the male reproductive system consist of?

The pressure of ocean water increases rapidly as the water gets deeper.
What property of ocean water increases rapidly as the water gets deeper?

Centripetal forces cause objects to turn around continuously in a circle.

Forces which cause objects to turn around continuously in a circle are known as?