a. Size of the population compared to the world population
The world has a population of 6 billion. India alone has a population of 1 billion approximately. India accounts for 16% of the world's population approximately.
b. India 's geographic area compared to the world geographic area? What percentage is India 's geographic area and density of population?
By area, India is the seventh largest country in the world. It consists of twenty-eight states and seven Union Territories. Area covered by India is 3.3 million sq. kms approximately. World geographic area is 1.48 billion sq. kms approximately. India's density of population is approximately 336 persons per square km whereas world's density of population is 44.57 persons per sq.km
b. The demographic transitions- 3 stages and which stage India is in
Demographic transition occurs in societies that transition from high birth rates and high death rates to low birth rates and low death rates due to the economy of the country.
In pre-industrial society, death rates and birth rates were both high and fluctuated rapidly according to natural events, such as drought and disease, to produce a relatively constant and young population.
This stage leads to a fall in death rates and an increase in population. The changes leading to this stage in Europe were initiated in the Agricultural Revolution of the 18th century and were initially quite slow. In the 20th century, the falls in death rates in developing countries tended to be substantially faster. Countries in this stage include Yemen, Afghanistan, Palestine, Bhutan and Laos and much of Sub-Saharan Africa (but do not include South Africa, Zimbabwe, Botswana, Swaziland, Lesotho, Namibia, Kenya and Ghana, which have begun to move into stage 3).
A consequence of the decline in mortality in Stage Two is an increasingly rapid rise in population growth (a "population explosion") as the gap... [continues]
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