Muddy coast builders
A river carries tiny grains of mud and sand down to the sea. Ocean currents push that mud along the shore, where it settles and slowly makes new muddy ground.
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In the picture
- the muddy water spreading from the river mouth
- the brown band of mud drifting along the shore
- a young tree growing in the fresh mud
Examples
- Mud left on a path after a heavy rainstorm.
- Sand piling up in a river bend after a flood.
Key takeaways
- Rivers carry mud and sand into the sea.
- Where the current slows down, mud settles and new ground forms, and mangroves can root there.
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Three questions on this lesson. It has left the free week, so its quiz is for subscribers.
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