Turn the given fact into a question by a simple rearrangement of words. This typically involves replacing some part of the given fact with a WH word. For example, replacing the subject of the provided fact with the word "what" can form a valid question. Don't be creative! You just need to rearrange the words to turn the fact into a question - easy! Don't just randomly remove a word from the given fact to form a question. Remember that your question must evaluate scientific understanding. Pick a word or a phrase in the given fact to be the correct answer, then make the rest of the question. You can also form a question without any WH words. For example, "A radio converts electricity into?"

Q: Fact: safety goggles are used for protecting the retina during experiments.

A: what are safety goggles used to protect during experiments?
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Q: Fact: Endoplasmic reticulum are membranes attached structures in the cytoplasm where proteins are made.

A: Endoplasmic reticulum are what attached to structures in the cytoplasm where proteins are made?
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Q: Fact: Howling is used to caution other wolves by wolves.

A:
What kind of sound is used by wolves to caution other wolves?
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