Why can a comparison of population change be wrong without stating the time period?
Answer and explanation
Correct answer: Because change is always measured over a specified period
The governing concept is the time scale of demographic change. A change is a difference between two measured situations, so the starting and ending dates are essential. Saying that a population increased by a particular amount is incomplete unless we know whether the increase occurred in one year, ten years or a much longer period. Rates and comparisons can be especially misleading when the periods differ. Option A is correct because population change is always interpreted over a stated interval. Option B is false, while C misunderstands migration and D wrongly dismisses deaths, which are part of population change.
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What is the correct answer to this question?
Because change is always measured over a specified period
Why is this the correct answer?
The governing concept is the time scale of demographic change. A change is a difference between two measured situations, so the starting and ending dates are essential. Saying that a population increased by a particular amount is incomplete unless we know whether the increase occurred in one year, ten years or a much longer period. Rates and comparisons can be especially misleading when the periods differ. Option A is correct because population change is always interpreted over a stated interval. Option B is false, while C misunderstands migration and D wrongly dismisses deaths, which are part of population change.
Which subject and chapter does this question cover?
This is a Class 9 Geography question. Chapter: Population. Topic: Processes of Population Change.
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