<span>A. It established federal emissions standards
</span>The enactment of the Clean Air Act of 1970 (1970 CAA) resulted in a major shift in the federal government's role in air pollution<span> control. This legislation authorized the development of comprehensive federal and state regulations to limit </span>emissions<span> from both stationary (industrial) sources and mobile sources.</span>
Answer:
A market in which goods or services are traded illegally is called a black market.
Explanation:
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How did Catherine the Great respond to the peasant uprising during her reign?
She crushed them despite her sympathy.
The concept of natural rights is most clearly contained in the Declaration when it states that human beings are endowed with the rights of "life, liberty, and the pursuit of happiness"
Those are not rights granted by the Government but are natural rights bestowed on all mankind.
Explaining the purpose and methods of a study are explained to subjectonce it's over is known as research methodology.
Research methodology is the way researchers describe how they intend to conduct research. It is a logical and systematic plan for solving research problems. Methodology describes a researcher's research approach to ensure reliable and valid results that are consistent with goals and objectives.
Research methodology gives validity to research and provides scientifically correct evidence. It also provides a detailed plan to keep researchers on track and make the process smooth, effective and manageable. Researcher methodology helps readers understand the approaches and methods used to reach conclusions.
Know more about research methodology here
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