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2018-10-17

How does weathering and erosion affect the landscape?

How does weathering and erosion affect the landscape?

Once a rock has been broken down, a process called erosion transports the bits of rock and minerals away. Weathering and erosion constantly change the rocky landscape of Earth. Weathering wears away exposed surfaces over time. The length of exposure often contributes to how vulnerable a rock is to weathering.

How does erosion change the Earth’s surface over time?

Coastal erosion—the wearing away of rocks, earth, or sand on the beach—can change the shape of entire coastlines. During the process of coastal erosion, waves pound rocks into pebbles and pebbles into sand. Waves and currents sometimes transport sand away from beaches, moving the coastline farther inland.

How do weathering mass wasting and erosion change the landscape together?

These forces of erosion will be covered later. While plate tectonics forces work to build huge mountains and other landscapes, the forces of weathering and mass wasting gradually wear those rocks and landscapes away, called denudation. Together with erosion, tall mountains turn into hills and even plains.

What comes first weathering or erosion?

Weathering is the natural process that causes rock to break down over time. Erosion is the moving or shifting of those smaller pieces of broken rock by natural forces, such as wind, water or ice. Weathering must occur before erosion can take place.

What is the key difference between weathering and erosion?

When the smaller rock pieces (now pebbles, sand or soil) are moved by these natural forces, it is called erosion. So, if a rock is changed or broken but stays where it is, it is called weathering. If the pieces of weathered rock are moved away, it is called erosion.

How do you prevent erosion on a sloped yard?

If your yard is steep and hilly, terracing may be in order. However, some of the best solutions are often less labor intensive. Consider mulching exposed soil surfaces, overseeding your lawn, and strategically placing plants. Growing ground covers and other perennials will hold soil in place naturally.