Assertion (A) : Mortality is one of the basic elements of population change. Reason (R) : Death of human being causes change in population growth. Codes :
This question examines the fundamental components of population change, specifically focusing on mortality.
Assertion (A): Mortality is one of the basic elements of population change.
Analysis: Population change is typically measured by the interplay of births, deaths (mortality), immigration, and emigration. Therefore, mortality is indeed a fundamental factor influencing population size and dynamics.
Conclusion: Assertion (A) is true.
Reason (R): Death of human beings causes change in population growth.
Analysis: Deaths directly decrease the number of individuals in a population. This decrease contributes to the net change in population size, thus impacting population growth rates.
Conclusion: Reason (R) is true.
Analysis: The Reason (R) explains *how* mortality acts as a basic element mentioned in Assertion (A). Deaths are the direct mechanism through which mortality influences population size and growth. Therefore, Reason (R) provides a correct explanation for Assertion (A).
Both Assertion (A) and Reason (R) are factually correct statements regarding population dynamics. Furthermore, Reason (R) accurately elaborates on the role of mortality as a driver of population change outlined in Assertion (A).
Match List – I with List – II and select the correct answer from the codes given below :
List - I (General Terms) | List - II (Definitions) |
| I. Crude birth rate | A. Births over deaths per thousand of population |
| II. General fertility rate | B. Number of deaths per thousand of population |
| III. Natural increase of population | C. Ratio between number of births and number of females in productive age |
| IV. Death rate | D. Ratio between the number of births and total population |
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