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  1. Erosion - National Geographic Society

    Jun 5, 2025 · Erosion is the geological process in which earthen materials are worn away and transported by natural forces such as wind or water.

  2. Erosion - National Geographic Society

    Erosion is the process where rocks are broken down by natural forces such as wind or water. There are two main types of erosion: chemical and physical. Chemical erosion occurs when a rock’s chemical …

  3. Canyon - National Geographic Society

    Jul 3, 2024 · The overall pattern of erosion and layering reveals the rate of water flow, from both the river and rain, through a canyon. Geologists estimate that the Grand Canyon, for example, is being …

  4. Weathering - National Geographic Society

    Erosion Earth Science, Geology, Geography, Physical Geography Erosion is the geological process in which earthen materials are worn away and transported by natural forces such as wind or water.

  5. Weathering - National Geographic Society

    Jun 5, 2025 · Once a rock has been broken down, a process called erosion transports the bits of rock and minerals away. Water, acids, salt, plants, animals and changes in temperature are all agents of …

  6. Sediment - National Geographic Society

    Apr 23, 2024 · Erosion can move sediment through water, ice, or wind. Water can wash sediment, such as gravel or pebbles, down from a creek, into a river, and eventually to that river's delta.

  7. Runoff - National Geographic Society

    Oct 19, 2023 · In the process of erosion, runoff can carry away the fertile layer of topsoil. Farmers rely on top soil to grow crops. Tons of top soil are lost to runoff every year. People can limit runoff …

  8. The Rock Cycle - Education

    Jun 4, 2025 · Through the process of erosion, these fragments are removed from their source and transported by wind, water, ice, or biological activity to a new location. Once the sediment settles …

  9. Waterfall - National Geographic Society

    A stream's velocity increases as it nears a waterfall, increasing the amount of erosion taking place. The movement of water at the top of a waterfall can erode rocks to be very flat and smooth. Rushing …

  10. Sedimentary Rocks - Education

    Erosion and weathering include the effects of wind and rain, which slowly break down large rocks into smaller ones. Erosion and weathering transform boulders and even mountains into sediments, such …