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

Ex Input:
Cloudy conditions will most likely result from a low-pressure weather system.

Ex Output:
Which will most likely result from a low-pressure weather system?


Ex Input:
Filter feeders called rotifers collect digestive and excretory wastes in cloacal bladder primitive organ.

Ex Output:
Filter feeders called rotifers collect digestive and excretory wastes in what primitive organ?


Ex Input:
Ion drives have low thrust but high efficiency.

Ex Output:

Ion drives have low thrust but high what?