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

Ex Input:
Passage: David Remahl. Polygenic traits result in a distribution that resembles a bell-shaped curve . The creator of this work allows anyone to use it for any purpose including unrestricted redistribution, commercial use, and modification. Answer: bell-shaped

Ex Output:
Polygenic traits result in a distribution that resembles a curve. what is the shape of the curve?

Ex Input:
Passage: A cross section of earthquake epicenters. The depth outlines the subducting plate. There are shallow, intermediate, and deep earthquakes. Answer: earthquake

Ex Output:
Subducting plate and epicenter are terms related to what phenomenon?

Ex Input:
Passage: For a full description of weight, look at Forces: Mass versus Weight. In sum, weight is the result of the force of gravity being opposed by the normal force. As we just learned, objects in orbit are in freefall; they have nothing exerting a normal force against them and thus no weight. Answer: weight

Ex Output:
What property is the result of the force of gravity being opposed by the normal force?