Answer:
Birth
rate, death rate and migration are the three major components of population
growth.
(i) Birth rate is the major component of growth because if birth rate is higher
than death rate, growth rate will automatically increase.
(ii) Another major component is death rate. These days we
find that there are improved health facilities and there is awareness among
people about their health maintenance. With the result, death rate has declined
leading to growth rate of the population.
(iii) Migration is another component of population growth. Though
internal migration does not change the population of the country but it does affect
the distribution of population within the country. International migration
definitely changes the size of the population.
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