What are the suggested reasons for population explosion?
The main reasons for population explosion are:
Increased health facilities along with better living conditions have significantly improved the quality of life, leading to an explosive impact on population growth. These developments have contributed to a rapid decline in death rate across populations.
Other probable reasons include a decline in maternal mortality rate (MMR) and infant mortality rate (IMR), as well as an increase in number of people in reproducible age. These factors collectively resulted in the world population rising from about 2 billion in 1900 to 7.2 billion in 2011, with India's population crossing 1.2 billion by May 2011.
Explanation
The textbook explicitly states these reasons in the context: 'A rapid decline in death rate, maternal mortality rate (MMR) and infant mortality rate (IMR) as well as an increase in number of people in reproducible age are probable reasons for this.' It also mentions that 'increased health facilities along with better living conditions had an explosive impact on the growth of population.' This is a direct 2-mark question requiring students to list the factors mentioned in the NCERT text.
Solution Steps
Step 1: Identify the key phrase 'population explosion' and its causes from the context
Step 2: List the factors: decline in death rate, MMR, IMR, and increase in reproducible age population
Step 3: Include the broader context of increased health facilities and better living conditions