instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Landslides moving loose rocks downhill process is the best example of a sudden change to earth’s surface.
answer:
Which process is the best example of a sudden change to Earth’s surface?


question:
Gastric emptying is regulated by both the stomach and the duodenum.
answer:
Gastric emptying is regulated by both the stomach and what other digestive structure?


question:
Isothermal kind of process is boiling.
answer:

What kind of process is boiling?