- The age and sex pyramid shows the percentage of males and females in different age groups of a population.
- Brazil’s population is ageing slowly, while India has more youth, leading to a larger working population in India.
- The proportion of children is higher in India, whereas people aged 80+ are more in Brazil.
- The pyramid helps to study the population structure, including children, youth, and elderly groups.
- India’s population is younger, while Brazil's is gradually becoming older over time.
Key Points
Key Points: Population of India
- India's population was around 121 crores in Census 2011, making it the second most populous country in the world.
- India has only 2.41% of the world's land, but supports 17.5% of the world’s population.
- The average population density of India is 382 persons per sq. km as per the 2011 Census.
- The population is unevenly distributed due to factors such as physiography, climate, fertile land, water resources, and economic activities.
- Densely populated areas include the northern plains, major cities like Delhi, Mumbai, Kolkata, while sparse population is found in mountains, deserts, and forests due to tough living conditions.
Key Points: Population of Brazil
- Brazil’s population was 19 crores in 2010, ranking 5th globally.
- It has 5.6% of land and 2.78% of the world’s population; density is 23 persons/sq.km.
- Most people live near the eastern coast due to farming and industries.
- Amazon Basin is sparsely populated due to rainfall, forests, and inaccessibility.
- Central and western Brazil have low density; the highlands have a moderate population.
Key Points: Population Composition of Brazil and India> Sex Ratio
- Sex ratio means the number of females per 1000 males in a region.
- Brazil's sex ratio has always been above 1000, meaning women outnumber men.
- Since 2001, Brazil’s female population has increased more than that of males.
- In India, men outnumber women, and the sex ratio has always been below 1000.
- India has seen small improvements in sex ratio since 1991, but fluctuations continue.
Key Points: Population Composition of Brazil and India> Age and Sex Pyramid
Key Points: Population Composition of Brazil and India> Population Growth Rate
- Brazil’s population growth rate has decreased steadily and may not increase in the next two decades.
- In India, the population grew by 18.2 crores from 2001 to 2011.
- India’s growth rate was highest till 1971, then it stabilized but is still increasing.
- A downward trend in the graph means the growth rate is slowing, not that the population is decreasing.
- Brazil’s low growth rate may lead to a decline in population in the future.
Key Points: Population Composition of Brazil and India> Life Expectancy
- Life expectancy is the average number of years a person is expected to live.
- In 2016, life expectancy in Brazil was 75 years, while in India it was 68 years.
- India’s life expectancy increased from 41 years in 1960 to 68 years in 2016.
- Improved health care, nutrition, and medical progress have led to increased life expectancy.
- In developing countries, life expectancy is still low but is rising due to socio-economic development.
Key Points: Population Composition of Brazil and India> Literacy Rate
Important Questions [2]
Concepts [9]
- Map Study: India's Population Distribution
- Population of India
- Map Study: Brazil's Population Distribution
- Population in Brazil
- Population Composition of Brazil and India> Sex Ratio
- Population Composition of Brazil and India> Age and Sex Pyramid
- Population Composition of Brazil and India> Population Growth Rate
- Population Composition of Brazil and India> Life Expectancy
- Population Composition of Brazil and India> Literacy Rate
