Correct Option
The correct option is It decreases..
Explanation
Population change in any region is determined by three primary factors: birth rate, death rate, and migration. Migration involves the movement of people across territories, redistributing population between the Place of Origin (departure) and the Place of Destination (arrival).
Detailed Analysis
Migration affects the demographic structure and size of both the source and destination areas:
- Place of Origin: This is the location from which individuals move out. This process is referred to as out-migration or emigration. Since individuals are leaving this area, the direct demographic impact is a decrease in the total population.
- Place of Destination: This is the location where individuals arrive. This process is referred to as in-migration or immigration, which leads to an increase in population.
Therefore, out-migration reduces the population pressure on the Place of Origin.
Key Takeaway: Out-migration results in a decrease in the population of the Place of Origin, while in-migration increases the population of the Place of Destination.