On Christmas morning, 3-year-old Billy opens a gift from his mother and finds a new sweater. Disappointed that it is not a toy,
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<h2>Additionally, environmental pollution is triggered by the introduction of harmful materials, such as gaseous pollutants, toxic metals, and particulate matter (PM) into the atmosphere; sewage, industrial effluents, agricultural runoffs, and electronic wastes into water bodies; and activities such as mining, ...</h2>