India Population and Demographics

Birth-rate is conventionally expressed as births per 1000 people per year. This standardized measurement allows for easy comparison between different populations and is the universally accepted demographic indicator.

Population change in any region is determined by three fundamental factors: births (fertility), deaths (mortality), and migration (both immigration and emigration). Marriage affects births indirectly but is not a direct factor, and life expectancy is a consequence, not a cause.

According to census 2011, Uttar Pradesh has the highest proportion of scheduled caste population.

In demography, the sex ratio is conventionally calculated as the number of females per 1,000 males in the population. This standardized measure allows for consistent comparison across regions and time periods. Option B correctly states this definition.

Class I cities in India are defined as urban agglomerations with populations over 100,000. Approximately two-thirds of India's urban population resides in these larger cities, reflecting urban concentration patterns. Option B correctly represents this proportion.

Manipur has the highest proportion of Scheduled Tribe population to total population among Indian states. This is due to the significant presence of tribal communities like the Nagas, Kukis, and others in the state. Option A is correct based on demographic data.

The Toda people are a tribal group primarily found in the Nilgiri Hills of Tamil Nadu. They are traditionally pastoralists known for their unique customs and dairy-based economy. Option C correctly identifies their geographic location.

Population explosion occurs when there's a significant imbalance between birth and death rates, specifically when birth rates remain high while death rates decline due to improved healthcare, sanitation, and nutrition. This creates rapid population growth. Option A correctly describes this condition.

Population density = Population / Area. Given: 50 lakh people = 5,000,000 people; 25,000 sq km area. Density = 5,000,000 / 25,000 = 200 persons per sq km. Option D is the correct calculation.

A high ratio of non-workers to workers indicates rapid population growth because it suggests a large dependent population (children, elderly) relative to the working-age population. This demographic structure is characteristic of populations with high birth rates and growing numbers of young people. Option D correctly identifies this implication.

India has an unfavorable sex ratio with fewer women than men. This demographic pattern stems from gender discrimination that manifests as neglect of female children in areas like nutrition, healthcare, and education. While other factors like maternal mortality also contribute, systematic neglect of girls during childhood is the primary driver of this imbalance.

Rural-to-urban migration is the most intense migration stream in India due to push factors like lack of economic opportunities and underemployment in rural areas, combined with pull factors like better jobs, education, and healthcare facilities in cities. This pattern drives India's urbanization trend and has been accelerating since economic liberalization.

As per the 2001 Census, Madhya Pradesh had the largest population of Scheduled Tribes in India. The state's substantial tribal population includes major groups like Gonds, Bhils, Baigas, and others, concentrated in forest regions and tribal belts of central India.