Question

1. what evidence does the author use to support the idea that contaminated water can negatively impact peoples health?

Explanation:

To answer this, one would need to refer to the specific text the question is based on. Evidence could include scientific studies showing links between contaminated water and diseases like cholera, typhoid, or gastrointestinal illnesses; case - studies of communities with contaminated water sources and resulting health problems; or expert testimony on the harmful effects of pollutants in water on human health.

Answer:

Without the specific text, it's impossible to provide the exact evidence the author used. However, common evidence includes scientific studies, case - studies, and expert testimony on health - water contamination links.