Environmental
Thermal pollution in Tennessee waterways most commonly results from:
AAgricultural fertilizer runoff
BHeated water discharge from power plants warming river and lake temperatures✓ Correct
COil and gas pipeline leaks
DUrban stormwater runoff in summer months
Explanation
Thermal pollution occurs when heated water from industrial processes (particularly power plant cooling water, including TVA plants) is discharged into waterways, raising water temperatures and reducing dissolved oxygen, which harms aquatic life.
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Key Terms to Know
Adjustable-Rate Mortgage (ARM)
A mortgage with an interest rate that changes periodically based on a financial index, usually after an initial fixed-rate period.
ZoningLocal government regulations that control land use by dividing areas into zones specifying permitted uses, building sizes, and densities.
VarianceOfficial permission to use land in a way that does not conform to the applicable zoning ordinance, granted by a zoning board when strict enforcement would cause undue hardship.
Eminent DomainThe power of government to take private property for public use, with the requirement to pay the owner just compensation.
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