Examlex
In the context of ecological validity, increase in generalizability results in a threat to _____, because one is less able to attribute differences to isolated differences in the independent variable.
Superfund
A U.S. federal government program designed to fund the cleanup of sites contaminated with hazardous substances and pollutants.
Hazardous Air Pollutants
Airborne substances that can cause serious health risks, including carcinogens and toxins, which are regulated by environmental agencies.
Clean Air Act
A comprehensive federal law in the United States that regulates air emissions from stationary and mobile sources to protect public health and the environment from air pollution.
Hazardous Air Pollutants
Substances in the air that can cause harm to the environment or health of humans.
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