Explanations:Population growth in urban areas like Mumbai can be influenced by several factors, including migration and natural increase. Migration refers to the movement of people from one place to another, often driven by economic opportunities, better living conditions, or other pull factors. However, the question focuses on the life cycle stages of migrants and their impact on population growth.
Natural increase is a demographic term that refers to the growth in population due to the difference between the number of births and the number of deaths. In the context of the question, the statement describes a typical pattern where young migrants in their 20s and 30s move to Mumbai in search of work. Once they settle and get married, they start families, leading to an increase in the number of births. This process contributes to the natural increase in the population of Mumbai.
The life cycle stages mentioned in the question are crucial for understanding natural increase. Young migrants are often in their prime reproductive years, and once they establish themselves in the city, they are more likely to start families. This demographic transition from migration to family formation is a key driver of natural increase in urban areas.
It is important to distinguish between migration and natural increase. While migration can lead to a rapid increase in population due to the influx of people, natural increase is a more gradual process that occurs over time as a result of births exceeding deaths. The statement in the question highlights the role of natural increase in the context of urban population growth, making it the correct answer.
Understanding the factors that contribute to population growth is essential for urban planning, resource allocation, and policy-making. In the case of Mumbai, recognizing the role of natural increase helps in anticipating future population trends and planning for the needs of a growing population.