TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: Light retains its original color under water because frequency remains the same when light is refracted.

SOLUTION: Light retains its original color under water because what remains the same when light is refracted?

PROBLEM: The bones of the newborn skull are not fully ossified and are separated by large areas called fontanelles.

SOLUTION: The bones of the newborn skull are not fully ossified and are separated by large areas called what?

PROBLEM: You call the movement of a substance from an area of a higher amount toward an area of lower amount diffusion.

SOLUTION:
What do you call the movement of a substance from an area of a higher amount toward an area of lower amount?