Environmental

Mercury contamination in Tennessee's waterways is a significant environmental issue because:

AMercury is found only in gold mining operations
BMercury bioaccumulates in fish tissue, creating health risks for people who consume contaminated fish✓ Correct
CMercury only affects surface water, not groundwater
DMercury contamination is temporary and naturally remediated within 1 year

Explanation

Mercury contamination — from coal-fired power plants, industrial processes, and historical operations — bioaccumulates in fish through the food chain. Tennessee's environmental health advisories limit fish consumption from contaminated waterways, which can affect property values near such water bodies.

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