External factors for changing the earth surface are: Weathering Deposition Erosion All of the options
Question
External factors for changing the earth surface are:
- Weathering
- Deposition
- Erosion
- All of the options
Solution
The external factors that change the Earth's surface include:
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Weathering: This is the process where rocks and minerals are broken down into smaller pieces by factors such as wind, water, and temperature changes. There are two types of weathering: physical and chemical. Physical weathering involves the breakdown of rocks and minerals by physical forces like wind and water, while chemical weathering involves the breakdown of rocks and minerals through chemical reactions.
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Deposition: This is the process where sediments, soil, and rocks are added to a landform or land mass. Wind, water, and ice can carry these particles and deposit them in a new location. Over time, these deposits can accumulate and form new landforms such as deltas, sand dunes, and even new layers of soil.
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Erosion: This is the process where soil, rock, and sediment are moved from one location to another. This can be caused by wind, water, or ice. Erosion can change the shape of landforms, and it can also expose underlying rocks and minerals.
So, all of the options - weathering, deposition, and erosion - are external factors that can change the Earth's surface.
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