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

[Q]: Plasma membranes encloses and defines the borders of cells.
[A]: What encloses and defines the borders of cells?


[Q]: Light is scattered from molecules in our atmosphere.
[A]: Light is scattered from what in our atmosphere?


[Q]: Questioning claims based on their scientific verifiability rather than accepting claims based on faith or anecdotes is called scientific skepticism.
[A]:
Questioning claims based on their scientific verifiability rather than accepting claims based on faith or anecdotes is called what?