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: What makes nobel gases unreactive? Answer: its electon configuration

A: Its electon configuration makes nobel gases unreactive.
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Q: Question: Which of these would most likely improve the air quality in large Texas cities? Answer: Limiting the number of cars on the roads

A: Limiting the number of cars on the roads would most likely improve the air quality in large texas cities.
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Q: Question: Why do crystals have relatively sharp and well-defined melting points? Answer: uniform intermolecular forces

A:
Uniform intermolecular forces do crystals have relatively sharp and well-defined melting points.
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