Increase and decrease in population:
Which is better? Increase or decrease in population?
Population changes are not automatically better or worse
Neither a population increase nor a decrease is inherently “better.”
The key factor is whether the population size is balanced with available resources and opportunities.
Benefits of population increase
An increase can be positive if there are sufficient jobs, food, housing, education, and healthcare.
A growing population provides a larger workforce, encourages more innovation, and strengthens the economy.
Risks of rapid population increase
If growth is too fast, it can cause overcrowding, unemployment, pollution, and excessive pressure on natural resources.
Benefits and risks of population decrease
A decrease can help overpopulated areas by reducing strain on resources, lowering pollution, and improving living conditions.
However, too much decrease can lead to labor shortages, an aging population, slower economic growth, and challenges in supporting the elderly.
Optimal population scenario
The ideal is a stable or balanced population where birth rates, death rates, immigration, and emigration are in harmony with the environment and the country’s ability to support its people.
What causes the increase and decrease in population?
A) Increase in population:
• Births (natality):- more individuals born adds to the population.
• Immigration:- Individuals moving into a particular area, increases the population.
INCREASING POPULATION
↑
Birth rate > Death rate
(High natality, low mortality)
↑
↓
Death rate > Birth rate
(High mortality, low natality)
↓
DECREASING POPULATION
B) Decrease in population:
• Deaths (mortality):- When individuals die, the population reduces.
• Emigration:- Individuals moving out from a particular area, reduces the population.
b. INCREASING POPULATION
↑
Immigration > Emigration
(More individuals enter)
↑
↓
Emigration > Immigration
(More individuals leave)
↓
DECREASING POPULATION