In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Q: Question: Which crust lies deep inside the ocean? Answer: oldest

A: Oldest crust lies deep inside the ocean.
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Q: Question: Which process causes the fastest changes to the surface of Earth? Answer: a major earthquake happening in a mountain range

A: A major earthquake happening in a mountain range process causes the fastest changes to the surface of earth.
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Q: Question: Which best explains the importance of nitrogen in the cycling of energy and matter? Answer: Nitrogen increases protein production in plants.

A:
Nitrogen increases protein production in plants best explains the importance of nitrogen in the cycling of energy and matter.
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