Answer:
The correct answer to the question: What did the Clean Air Act allow citizens to do that no previous U.S. environmental law had allowed, would be: it was the first law that considered citizen lawsuits against the correct enforcement of the statutes stated in the Act.
Explanation:
The Clean Air Act, which was passed originally in 1963, and which has been amended since, with its last update being in the 1990´s, became the first time that the U.S government not only established federal funding for environmental issues, but also regulated environmental topics through EPA (Environmental Protection Agency, 1970) and considered the power that citizens could have to ensure the enforcement of the statutes and provisions considered in the Act. This consideration of citizen suits, is the most important and relevant difference with earlier environmental laws.
The correct answer is <u /><em>a</em><em>daption</em>. The particular environment in which a particular environment is exposed to gives it the characteristic or the ability to adapt. This is how a particular ecosystem works. It is the relationship of organisms within their environment that evolves through time in order for it to survive and propagate into more adapted kinds of species.
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The pollutants in 1970 were the highest since recorded history and are declining steadily.
D) would be the answer
Why? when using a scientific method you don't want to choose another thing do you?
Answer:
Xenon 133
Explanation:
<em>Xenon 133 can be used as a radiopharmaceutical for ventilation scans, images are obtained when the patient rebreathes the gas (wash-in) and then when they exhale (washout),</em> therefore these images can be obtained in just one projection.
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