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What is a volcano?

Back

A volcano is a landform that occurs when molten rock, ash, and gases escape from beneath the Earth's surface, often forming a mountain or hill.

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What is a valley?

Back

A valley is a low area of land between hills or mountains, often with a river running through it.

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What is an island?

Back

An island is a piece of land that is completely surrounded by water.

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What are hills?

Back

Hills are raised areas of land, smaller than mountains, often with a rounded top.

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What is a peninsula?

Back

A peninsula is a landform that is surrounded by water on three sides.

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What is a plain?

Back

A plain is a large area of flat land with few trees, often found at low elevations.

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What is a mountain?

Back

A mountain is a large landform that rises prominently above its surroundings, usually in the form of a peak.

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What is a river?

Back

A river is a large, flowing body of water that usually empties into a sea or ocean.

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What is a lake?

Back

A lake is a large body of water surrounded by land.

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What is an ocean?

Back

An ocean is a vast body of salt water that covers almost three-quarters of the Earth's surface.