The correct answer is: d) All of the above.
Assam has witnessed a significant increase in population over the past decades due to a number of factors, including high birth rates, in-migration, and improved healthcare.
High birth rates have been a major factor in the population growth of Assam. The state has one of the highest fertility rates in India, with an average of 2.4 children per woman. This is significantly higher than the national average of 2.2 children per woman.
In-migration has also contributed to the population growth of Assam. The state has been a major destination for migrants from other parts of India, particularly from the neighboring states of Bihar and Uttar Pradesh. These migrants are attracted to Assam by the state’s relatively low cost of living and its abundant natural resources.
Improved healthcare has also played a role in the population growth of Assam. The state has made significant progress in reducing infant mortality and improving life expectancy. This has led to a higher number of people surviving to reproductive age, which has contributed to the increase in population.
The combination of high birth rates, in-migration, and improved healthcare has led to a significant increase in the population of Assam over the past decades. This has put a strain on the state’s resources and infrastructure, and has led to a number of social and economic challenges.