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Urbanization & megacities

Grade 8 · Geography · Free lesson

Hi there! I am Studyfin, your geography tutor. Today, we will explore how cities grow and why people move to them!

People do not settle randomly. They choose places with helpful physical features like rivers for water, flat land for building, and warm climates. These natural features influence where cities start and how large they can grow.

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Urbanization is the process of people moving from rural country areas to busy cities. Better jobs, schools, and technology act as 'pull factors' that attract people to urban centers, causing cities to expand rapidly.

Rural AreaMegacityMoving to City

When a city grows to hold over 10 million people, we call it a megacity. This massive growth changes the local landscape, turning forests and fields into concrete highways, homes, and skyscrapers.

10M5M1950TodayMegacity Population
✏️ Worked example

Let us analyze how a physical feature like a major river affects where people settle, and explain how this changes over time.

  1. First, identify the physical feature. A river provides fresh water, rich soil for farming, and an easy way to transport goods.
  2. Next, describe the initial settlement. Early settlers build homes close to the riverbank to access these resources easily, making the settlement small and linear.
  3. Then, identify the process of change. As trade increases, factories are built, and more people move there for work. This is the process of urbanization.
  4. Finally, explain the new settlement pattern. The city expands outward from the river, developing roads and suburbs, transforming from a tiny riverside dock into a sprawling megacity.
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