There is 18 people in the line
Answer:
Fertility rate is the number of live birth of a woman over a specific period of time.
Fertility rate can affect the world's population because the higher the fertility rate of the woman in the world,the higher the populations grows..If the world fertility rate is reduced,there will also be a visible reduction in the world'spopulation.
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Answer: Most schools are different but it is usually around 15-16
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The answer is D. It made it less time consuming and saved workers energy.