Examlex
Which planet in the solar system has the LOWEST average density?
Ratified
Formally approved or confirmed, often referring to the process by which legislation or constitutional amendments become valid.
Clean Air Act
A United States federal law designed to control air pollution on a national level, aiming to protect and improve the nation's air quality and the stratospheric ozone layer.
Stationary Sources
Stationary sources are fixed sites or facilities that emit pollutants into the environment, such as factories, power plants, and refineries.
Hazardous Air Pollutants
Substances in the air that can cause harm to human health or the environment, often regulated by environmental protection laws.
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