Population: Growth, distribution and density — Flashcards

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India's total population in 2011 was 1,210,854,977, which is approximately 1.21 billion. This made India the second most populous country in the world after China.

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India accounts for about 16.7% of the global population. This means roughly one out of every six people on Earth is Indian.

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1921 is known as the demographic divide because before this year, population growth was stagnant due to high birth and death rates. After 1921, improvements in health and sanitation led to a steady de…

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Birth rate is the number of live births per 1,000 people in a population in a given year. It is also called fertility. For example, if a country has a birth rate of 20, it means 20 babies are born per…

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Death rate is the number of deaths per 1,000 people in a population in a given year. It is also known as mortality. For instance, a death rate of 8 means 8 people die per 1,000 individuals each year.

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Natural growth rate is the difference between the birth rate and the death rate. It shows how fast a population is growing naturally, without considering migration. For example, if birth rate is 25 an…

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Migration changes population size when people move into (immigration) or out of (emigration) a region. Positive migration (more people coming in) increases population, while negative migration (more p…

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1. Stagnant growth (before 1921): High birth and death rates led to little growth. 2. Steady growth (1921–1951): Death rates fell due to better healthcare. 3. Rapid growth (1951–1981): Birth rates rem…