Answer :
The sentence from the article proving people in Skara Brae had fires is "The hearth kept the home warm and allowed the inhabitants to cook their food."
What is this text about?
This text focuses on describing the way people in Skara Brae lived based on the remains found by archeologists.
How does the author prove the Skara Brae people had fires?
In paragraph four, the author describes the elements found inside the house and he mentions "The hearth kept the home warm and allowed the inhabitants to cook their food". This sentence shows the people in this community had fires since "hearth" is a synonym of the fireplace.
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