TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: A visual "copy" of an object that is formed by reflected or refracted light is called image.

SOLUTION: A visual "copy" of an object that is formed by reflected or refracted light is called what?

PROBLEM: The values of strangeness assigned to various particles are based on decay systematics.

SOLUTION: The values of strangeness assigned to various particles are based on what?

PROBLEM: Decreases happens to a cell's efficiency as it grows in size.

SOLUTION:
What happens to a cell's efficiency as it grows in size?