Answer:
convenient and practical although possibly improper or immoral
Labor-saving devices are inventions that reduce the time and effort needed to perform or complete a task. Farm equipment, home appliances and construction equipment are examples of mechanical inventions that save time and physical labor.
<span>It is ineffective support because it provides no source for the information. at least i think thats right, hope it is :)
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The items must be in chronological order if they are being put in a list
Answer: B. The colors of light emitted from heated atoms had very specific energies
