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Erosion

Erosion happens all the time. Erosion made the mountains. It formed the deep canyons. Erosion is caused by a strong force that wears away land. It changes the earth forever!


How does erosion happen?

There are many forms of erosion. Each occurs in its own way. Some is caused by water. Some is caused by wind. Ice and humans cause erosion as well.


Erosion breaks away bits of earth. That Earth is moved to a new place. This can make a lot of Earth build up.


Water

Water causes most erosion. Rain erodes soil and rock. Rivers break down land to form valleys. That is how the Grand Canyon formed! A river broke down land for 5 million years. The canyon is now more than a mile deep!


Oceans also cause erosion. Their waves hit the land. This can form caves.


Water erosion formed the Grand Canyon

Wind and Ice

Wind blows a lot in dry areas. This moves dust to new places. This erosion makes sand dunes and cliffs. It can also make mountains disappear. The wind can erode them away into nothing. That would take millions of years to happen.


Ice can move downhill and erode everything in its path. Many mountains are made this way.


Wind erosion made a large arch

Humans

Erosion took place long before people. Humans have made it worse though.


Humans cut down trees and plants. This can make the soil wash away! This causes landslides and flooding. It can also stop crops from growing.


Humans can now control erosion, too. We trap soil that would to blow away. We build frames to stop boulders from falling.


Erosion on a big farm
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Questions
What does “disappear” mean?


To go away forever


To ask for help


To grow taller and stronger


To show up somewhere
What are “crops”?


Animals on a farm


Sand from the beach


Dirt on a farm


Plants that farmers grow for food
What is something humans do that makes erosion worse?


They live inside houses.


They trap soil so it will not blow away.


They cut down trees and plants.


They drive fast and create wind.
What formed the Grand Canyon?


A river


Wind


The sun


Ice
Please answer all questions

All Answers 1

Answered by GPT-5 mini AI
1. To go away forever
2. Plants that farmers grow for food
3. They cut down trees and plants
4. A river