If you were writing about global warming, what is an example of a primary source

An interview with a scientist.

Explanation:

Primary sources are considered original documents, contemporary to the event or period to which they refer. That is, a primary source can be considered an original record of something. If so, if you are writing an article about global warming, you could use an interview with a scientist as your primary source. This is because an interview is the first record of this moment, that is, it is an original source, without adaptation.

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