Answer:
The correct answers are A, B and D. The Clean Air Act was important because it emphasized cost-effective methods to protect the air; encouraged people to study the effects of dirty air on human health; and created a regulation that makes any activities that pollute the air illegal.
Explanation:
The Clean Air Act is a federal federal law designed to control air pollution nationwide. The Environmental Protection Agency (EPA) is required to develop and enforce the regulations to protect the general public from exposure to air pollutants that are known to be dangerous to human health. The 1963 law established a basic research program, which was expanded in 1967. The main changes to the law, which require regulatory controls of air pollution, were promulgated in 1970, 1977 and 1990.
The 1970 amendments significantly expanded the federal mandate by demanding broad federal and state regulations, both for fixed sources of pollution (industrial) and mobile sources.
In 1990 provisions were added to deal with acid rain, depletion of the ozone layer and toxic air pollution, and a program of national permits of fixed sources was established. Also new requirements were established for the reformulation of gasoline, the adjustment of Reid vapor pressure (RVP), which measures the volatility of gasoline; and the norms to control the evaporation emissions of the gasoline.
The Clean Air Act is important because it was the first important environmental law in the United States to include a disposition regarding citizen demands. Numerous local and state governments have promulgated similar laws, either the execution of federal programs or to fill important loopholes at the local level in federal programs.
<h2>Answer is "True" Generate a new hypothesis</h2>
Explanation:
- Due to the false hypothesis a student create a new hypothesis for the research.the hypothesis gives the objective to the research and the methodology to complete the work.
- If the student doesn't generate the correct the methodology hence, its work is not proficient to the research that's why the student try to do new analysis with new ideas.
- This is because the hypothesis is a conditional explanation about the connection between at least two factors. It is a particular, testable expectation about what you hope to occur in an investigation. For instance, an investigation intended to take a gander at the connection between lack of sleep and test execution may have a hypothesis that expresses, "This examination is intended to evaluate the theory that restless individuals will perform more awful on a test than people who are not sleepless.
- So, the right answer is true "Generate a new hypothesis" is the next step.
Answer:
The hemoglobin molecule has four binding sites for oxygen molecules: the iron atoms in the four heme groups. Thus, each Hb tetramer can bind four oxygen molecules.
Its evolution when living things change over time NOT adaptation oops I am sorry for the mistake!!
