Given a scientific passage and an answer, generate a question for the given answer.

Ex Input:
Passage: Waves are characterized by their ability to constructively and destructively interfere . Light waves which interfere with themselves after interaction with a small aperture or target are said to diffract . Answer: diffract

Ex Output:
Light waves which interfere with themselves after interaction with a small aperture or target are said to what?

Ex Input:
Passage: The cardiovascular system moves nutrients and other substances throughout the body. Answer: cardiovascular system

Ex Output:
Which human body system system moves nutrients and other substances throughout the body?

Ex Input:
Passage: Laura Guerin. Work is not done when a force is applied in a different direction than the direction of movement . CC BY-NC 3.0. Answer: none

Ex Output:
How much work is done when a force is applied in a different direction than the direction of movement?