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Which option gives the most correct causal sequence of population change?

Answer and explanation

Correct answer: Health improvement, decline in death rate, increase in natural growth

Correct answer: A. Improvements in health care, sanitation, nutrition, and disease control can reduce the death rate. If the birth rate does not fall by the same amount at the same time, the difference between births and deaths—natural increase—becomes larger. Thus the logical sequence is health improvement, lower mortality, and higher natural growth. A is correct. B begins with a rise in death rate but then claims health improvement and higher life expectancy, so its order and relationships are inconsistent. C is contradictory because it starts with zero migration and then refers to high in-migration; in-migration would add people to the destination, not directly describe loss from the source in the same place. D is wrong because increasing area does not cause a zero birth rate or a population explosion. Memory cue: better survival can first increase natural growth when fertility changes more slowly.

Related tags

Health ImprovementDeath RateNatural GrowthCausal SequenceProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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