Question

elephant skin
have you ever wondered what causes the wrinkles on an elephants skin? probably not! however, thanks to new research on the topic, we now have an explanation that could translate into exciting news for some people.
the purpose of an elephants skin folds has long been understood. when temperatures soar, the wrinkles help an elephant to stay cool. unlike humans, an elephant does not have sweat glands. to keep cool, it covers itself with mud. the
review the second and third paragraphs of the passage, which start on page 1 and end at the bottom of page 2.
how do these paragraphs fit into the structure of the passage?
they provide background information.
they tell the purpose of the passage.
they explain new research.
they describe an unsolved problem.

Explanation:

The paragraphs detail known facts about elephant skin folds, which is background info for the overall topic.

Answer:

They provide background information.