Answer:
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Explanation:
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The burning of fossil fuels is the major source of greenhouse gas emissions in the United States is the top source of greenhouse gas emissions in the US.
<h3>What are the top
sources of greenhouse gas emissions?</h3>
Carbon dioxide is the most primary effect of the green house gas emission. The consumption of fossil fuels for power, heat, and transportation is the major contributor to greenhouse gas emissions from people activities in the United States.
Water Vapor, Carbon Dioxide, Methane, Nitrous oxide, Fluorinated Gases, References and Resources are the principal of green house.
Thus, The burning of fossil fuels is the major source of greenhouse gas
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Answer:The researcher does not control the assignment of participants to groups and therefore has a nonequivalent groups design.
Explanation: The research design described above is a Quasiexperimental research, which is very similar to an experimental research with one very noticeable difference. In a quasi experimental research, such as described above, groups employed are usually preexisting, meaning that the experimenter does not control or have any impact on assigning subjects into the different groups, The group design are used just as they have preexisted, The nonequivalence portrayed in the group design of quasi experiment usually result in low internal validity expected of an experimental research.
