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

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

[EX Q]: Simple kind of diffusion do small hydrophobic molecules squeeze through lipid molecules.
[EX A]: What kind of diffusion do small hydrophobic molecules squeeze through lipid molecules?

[EX Q]: Leaves export sugar to roots and other nonphotosynthetic parts of the plant through the veins.
[EX A]:
How do leaves export sugar to roots and other nonphotosynthetic parts of the plant?