Final answer:
Automobiles, oil refineries, and paper mills contribute to nonpoint source pollution in water by introducing various contaminants into water bodies.
Explanation:
Automobiles, oil refineries, and paper mills all contribute to nonpoint source pollution in water. For example, increasing numbers of roads and parking lots due to automobiles lead to increased nonpoint source water pollution. This pollution includes contaminants like oil, gas, metals, and nutrients that can contaminate water supplies.
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