Deserts and Valleys

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What is a valley?

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

How do river valleys and glacial valleys differ?

River valleys are V-shaped due to the river's erosion, whereas glacial valleys are U-shaped from glacier movement.

Name a famous valley in the United States.

The Grand Canyon is a famous valley in the United States.

What is the difference between a desert and a semi-desert?

A desert receives less than 25 cm of rain per year, while a semi-desert receives more rain but still experiences arid conditions.

Which is the largest desert in the world?

The Antarctic Desert, although icy, is the largest desert by area.

What is an oasis?

An oasis is a fertile area in a desert, typically with a water source.

What is a canyon?

A canyon is a deep, narrow valley with steep sides, usually carved by river erosion over time.

Name the longest river valley in Africa.

The Nile Valley is the longest river valley in Africa.

Describe a desert plateau.

A desert plateau is a flat elevated area with arid conditions and sparse vegetation.

Which desert is known as the driest place on Earth?

The Atacama Desert in South America is known as the driest place on Earth.

What type of valley did glaciers create during the Ice Age?

Glaciers created U-shaped valleys during the Ice Age.

Name a desert located in Africa.

The Sahara Desert is located in Africa.

What causes the formation of valleys?

Valleys can form through processes like river erosion, glacier movement, or earth’s tectonic activity.

What is a volcanic desert?

A volcanic desert is an area with little rainfall created by rain patterns altered by volcanic mountains blocking weather systems.

Name a large valley located in California, USA.

The Central Valley is a large valley located in California.