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

[Q]: According to the english system measurement, 4 cups much is equal to 2 pints, 1 quart, and ¼ of a gallon.
[A]: According to the english system measurement, how much is equal to 2 pints, 1 quart, and ¼ of a gallon?


[Q]: If a substance has a ph value greater than 7,that indicates that it is base.
[A]: If a substance has a ph value greater than 7, what does it indicate?


[Q]: Prokaryotes group of simple organisms recycles nutrients and has been on earth since long before multicellular life appeared.
[A]:
What group of simple organisms recycles nutrients and has been on earth since long before multicellular life appeared?