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

Input: Consider Input: The sun delivers power to the chemical factory chloroplasts.

Output: What delivers power to the chemical factory chloroplasts?

Input: Consider Input: Through a process called electromagnetic induction, generators change the kinetic energy of a spinning turbine to electrical energy.

Output: Through a process called electromagnetic induction, generators change what energy form of a spinning turbine to electrical energy?

Input: Consider Input: A(n) electroscope is used to study charge.
Output: What device is used to study charge?