instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
The earth's magnetic poles have switched places repeatedly in the past.
answer:
The earth's magnetic poles have done what repeatedly in the past?


question:
Hydrocarbons compounds, which serve as fuels and are used in manufacturing, are called the driving force of western civilization.
answer:
What compounds, which serve as fuels and are used in manufacturing, are called the driving force of western civilization?


question:
Milk is usually subjected to pasteurization process, where high temperatures denature the proteins in bacteria so they cannot carry out functions needed to grow and multiply.
answer:

Milk is usually subjected to what process, where high temperatures denature the proteins in bacteria so they cannot carry out functions needed to grow and multiply?