Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
--------
Question: If the amount of force of that is applied is increased, it is easier happens to the work that a machine is producing.

Answer: If the amount of force of that is applied is increased, what happens to the work that a machine is producing?


Question: An excellent solvent that holds heat well and allows hydrogen bonds, water substance has many properties critical to life.

Answer: An excellent solvent that holds heat well and allows hydrogen bonds, what substance has many properties critical to life?


Question: Early in the development of a human fetus, the skeleton is made entirely of cartilage.

Answer:
Early in the development of a human fetus, the skeleton is made entirely of what?