A supporting evidence is the back up to a claim which validates or proves that the claim is true .
From the question asked, Dr Ward made a claim where he stated that a factory was unhealthy and unsafe for a child.
Therefore, in order to back up this claim, he would have to bring a supporting evidence in the form of either:
- Statistical number of children that fell sick after prolonged exposure to a factory
- News report stating how dangerous a factory can be
- Report from a medical practitioner that states how fragile children are and how their health can be affected from such exposure, etc
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https://brainly.com/question/20277303
