Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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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: Evolution occurs by natural selection, a process whereby better-adapted members pass along their traits, according to darwin.

Answer: Evolution occurs by what process whereby better-adapted members pass along their traits, according to darwin?


Question: Platinum and gold are useful materials for constructing circuits because of their ability to resist oxidation.

Answer:
Platinum and gold are useful materials for constructing circuits because of their ability to resist what?