Deserts and Valleys

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What is a valley?
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A valley is a low area between hills or mountains, often with a river running through it.
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How do river valleys and glacial valleys differ?
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River valleys are V-shaped due to the river's erosion, whereas glacial valleys are U-shaped from glacier movement.
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Name a famous valley in the United States.
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The Grand Canyon is a famous valley in the United States.
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What is the difference between a desert and a semi-desert?
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A desert receives less than 25 cm of rain per year, while a semi-desert receives more rain but still experiences arid conditions.
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Which is the largest desert in the world?
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The Antarctic Desert, although icy, is the largest desert by area.
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What is an oasis?
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An oasis is a fertile area in a desert, typically with a water source.
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What is a canyon?
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A canyon is a deep, narrow valley with steep sides, usually carved by river erosion over time.
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Name the longest river valley in Africa.
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The Nile Valley is the longest river valley in Africa.
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Describe a desert plateau.
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A desert plateau is a flat elevated area with arid conditions and sparse vegetation.
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Which desert is known as the driest place on Earth?
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The Atacama Desert in South America is known as the driest place on Earth.
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What type of valley did glaciers create during the Ice Age?
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Glaciers created U-shaped valleys during the Ice Age.
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Name a desert located in Africa.
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The Sahara Desert is located in Africa.
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What causes the formation of valleys?
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Valleys can form through processes like river erosion, glacier movement, or earth’s tectonic activity.
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What is a volcanic desert?
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A volcanic desert is an area with little rainfall created by rain patterns altered by volcanic mountains blocking weather systems.
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Name a large valley located in California, USA.
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The Central Valley is a large valley located in California.
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