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: Exposure to what can increase the amount of pigment in the skin and make it appear darker? Answer: ultraviolet radiation

A: Exposure to ultraviolet radiation can increase the amount of pigment in the skin and make it appear darker.
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Q: Question: The average global temperature has been rising since the end of what era? Answer: pleistocene

A: The average global temperature has been rising since the end of pleistocene era.
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Q: Question: Which is a function of the cardiovascular system? Answer: to transport gases throughout the body

A:
One function of the cardiovascular system is to transport gases throughout the body.
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