How Migration and Population Growth Affect Population Density

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In general, population density means the amount of people living in a unit area of land; usually in km2. That means that it is the density of human life in the area. Many factors can affect its numbers, but the most important ones are migration and population growth. Not only can it drastically rise, but it can also fall. Migration means moving from a country or a region, and settle there. It can be caused by many things. If a place is dangerous or is in threat of natural disasters, or war, people migrate and move away. If a place is poor in economical condition and is expensive in living, they will migrate. If a country/city doesn’t support un-occupied people, and if other places have many vacant jobs, they will migrate. So, in general, it is the movement of people, and it can either increase or decrease a place’s population density. Population growth is extremely crucial to the population density. In most countries, the population pyramid always grows wider and wider as it goes down, which means that it is always more birth rate with a lower death rate. Folding multiplications of unbalanced population growth can increase the population density. The increase of a place’s population density can be either a good or a bad thing. It can be good such as to support and increase the product of the country’s resources, provide young work energy, make the country stronger, etc. Or, it could be a bad thing such as to be overpopulated and lack education, not enough workplace, relief, resources, land, shelter, and can cause more pollution. The most densely populated countries in the world now are Bangladesh and India. They say that in there might be approximately 500 people every 1 km2! So overall, if people migrate in from other places, or if the population growth (birthrate) in a certain place grows, or increase, automatically, the population density will increase

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