GK
WORLD GEOGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Migration patterns
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Deaths
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Births
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All of these
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Detailed explanation-1: -Economic variations (such as a depression or job growth), political changes (such as a new policy on family planning or a new tax break on dependents), conflicts (such as wars), public health trends and natural events (such as long-term droughts or an earthquake) can impact birth and/or death rates.
Detailed explanation-2: -And while every population pyramid is unique, most can be categorized into three prototypical shapes: expansive (young and growing), constrictive (elderly and shrinking), and stationary (little or no population growth).
Detailed explanation-3: -When demographers attempt to forecast changes in the size of a population, they typically focus on four main factors: fertility rates, mortality rates (life expectancy), the initial age profile of the population (whether it is relatively old or relatively young to begin with) and migration.