Social Studies, 20.08.2020 20:01 TH3L0N3W0LF
When an electric kettle containing cold water is switched on, the water in it starts boiling after a few minutes. What is the source of the heat energy of the boiling water? A. Mechanical energy from the power socket B. Newly created energy that increased the total energy C. Mechanical energy from the heating element in the kettle D. Already existing energy that was present in some other form
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Which term refers to a group or community that forms the focal point of a study and consists of all the people considered for evaluation in the research? a. sample b. population c. variable d. mean
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Between 1860 and the gave the federal government some control over people’s lives.
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