$611, lower, and $819. i had to learn the hard way.
Federal and State governments have to protect extinction threatened animals <u>- Endangered Species Act</u>. Air pollution from industries and cars is limited by <u>Clean Air Act.</u>
<h3>Which Acts protect the environment?</h3><h3 />
The Clean Air Act (CAA) was passed to limit air pollution by requiring that industries and car markers, reduce the air pollution that they and their products cause.
The Endangered Species Act then requires that both the state and federal governments should act as best as they can to protect any animal that is threatened with extinction.
Find out more on the Clean Air Act at brainly.com/question/2116843.
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Answer:
participants were not allowed to seek available treatment
Explanation:
Tuskegee Syphilis Study was known as "Tuskegee Study of Untreated Syphilis in the Negro Male." The study started in 1932. The purpose of the study was to record the natural history of syphilis.
<u>The problem with this treatment was that the researchers first did not inform the participants on whom they were performing the research about the purpose of this study. Second, researchers did not allow these participants to seek available treatment for syphilis i.e., drug penicillin.</u>
So, the correct answer is the first option.
C: arid climates; much of south west Asia has deserts.
Invasion by the Barbarian Tribes, Economic troubles and overreliance on Slave labor.
