Question

population refers to the total number of people living in a certain area at a specific time


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Answer 1

Answer:

Population refers not only to people but any kind of living organisms or plants present in a certain area at a given period of time.

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Answer 2

Explanation:

Population change is simply the change in the number of people in a specified area during a specific time period. Demographics (or demography) is the study of population statistics, their variation and its causes. These statistics include birth rates, death rates (and hence life expectancy), migration rates and sex ratios. All of these statistics are investigated by censuses and surveys conducted over a period of time.[1] Some demographic information can also be obtained from historical maps, and aerial photographs.