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Find the center of mass of a lamina in the shape of , with density
Navigable Waters
Bodies of water that are legally recognized as being suitable for public transportation and commerce.
Clean Air Act
A landmark piece of U.S. federal legislation passed to control air pollution on a national level, regulating emissions from both stationary and mobile sources.
Wetlands
Areas of land saturated with water, either seasonally or permanently, which play a crucial role in the ecosystem.
Clean Water Act
A U.S. federal law established to regulate the discharge of pollutants into the waters of the United States and to quality standards for surface waters.
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