Q:

What are the three causes of changes in landforms?

A:

Quick Answer

The three main causes of landform changes are erosion, deposition and weathering. Some main types of landforms are mountains, plains, plateaus, valleys and deltas. A landform like a mountain experiences gradual change through weather conditions such as rain and wind.

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Full Answer

For mountain landforms to change, weathering must first occur. Weathering is a chemical and a physical process in which rocks become smaller in size due to weather and other conditions like frost action. These smaller pieces of rocks can be categorized as sediment types that include silt and sand.

After the weathering process, erosion takes place when these smaller sediment types are moved from one place to another. For example, rocks tumbling down a mountain causes a shift of rock from one area to another. It also causes a mountain to change or become eroded over time.

The erosion process leads to deposition of sediment to other locations to form landforms like a delta or sandbar. A delta forms near a river's mouth.

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Related Questions

  • Q:

    What are some names of landforms?

    A:

    Major landforms include plains, plateaus, hills and mountains, whereas minor landforms encompass smaller natural features such as buttes, canyons, valleys and basins. These landforms came about as the result of erosion on the earth's surface and tectonic plate activity beneath that surface over a long period of time.

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  • Q:

    What are delta landforms?

    A:

    Delta landforms are sedimentary wetlands that form at the mouths of rivers where the velocity of the water slows. As the sediment builds, triangular landforms separate the river into two or more channels.

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  • Q:

    How are landforms formed?

    A:

    Landforms are formed by movements of the earth, such as earthquakes, weathering, erosions and deposits. Many landforms are created by more than one of these processes. These are called polygenetic landforms.

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  • Q:

    What are all the different landforms?

    A:

    Landforms are divided into 11 major categories: Aeolian, coastal and oceanic, erosion, fluvial, impact, karst, lacustrine, mountain and glacial, slope, tectonic and volcanic. Within these groupings are many landform subtypes.

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