Geography · Topic 38 of 65
Deltas
⭐ MasteredA delta is a triangle-shaped area of land formed where a river meets the sea and drops the sediment it carried. Deltas are very fertile, so many people farm them.
💡 Fun fact
The Nile Delta has been farmed for thousands of years.
All about Deltas
A delta forms where a river meets the sea or a lake and drops the sediment it carried. Deltas are often triangle-shaped and have very fertile soil.
Many large cities and farms are built on deltas.
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Real-life uses of Deltas
- Growing rice and other crops
- Studying river sediment
- Planning flood defences
Frequently asked questions about Deltas
How is a delta formed?
A river drops its sediment where it meets the sea or a lake.
Why are deltas good for farming?
They have rich, fertile soil.