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Why is data from only one year not enough when comparing population growth?

Answer and explanation

Correct answer: Because growth needs comparison of two time points

Direct answer: Option A is correct. Growth is not simply the population present at one moment; it is the change between two points in time. For example, a population figure for 2011 alone tells us the size of the population in that year, but it does not tell us whether the number increased or decreased before or after it. To measure growth, compare an earlier figure with a later figure and consider the length of the interval. Option A states this requirement. Option B is false because people do live in every ordinary year. Option C is false because population is not always zero. Option D confuses population growth with area; area is the size of land, whereas growth concerns change in population number. Memory cue: one date gives size; two dates reveal change.

Related tags

Population ComparisonTime PeriodGrowth DataPopulation GrowthPopulationGeographyClass 9 Mcq

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