What is the role of water in hot arid regions?

P1C 10Landscape Features Caused by Water in Hot Arid Environ.

Flashcard
•
Geography
•
12th Grade
•
Hard
Van Zyl
FREE Resource
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11 questions
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1.
FLASHCARD QUESTION
Front
Back
Despite low rainfall, water is a significant agent of weathering and erosion in hot arid regions.
2.
FLASHCARD QUESTION
Front
What is weathering?
Back
Weathering is the breakdown of rocks.
3.
FLASHCARD QUESTION
Front
What is erosion?
Back
Erosion is the removal of broken material.
4.
FLASHCARD QUESTION
Front
What are the two main types of weathering in hot deserts?
Back
Exfoliation or Disintegration and Salt Crystallization Weathering (Salt-weathering).
5.
FLASHCARD QUESTION
Front
What causes exfoliation or disintegration in deserts?
Back
The large daily temperature range causes outer layers of rock to expand and contract, leading to peeling. Rapid cooling from a thunderstorm can also cause disintegration.
6.
FLASHCARD QUESTION
Front
What is salt crystallization weathering?
Back
High temperatures draw saline groundwater to the rock surface. As water evaporates, salt crystals grow in cracks, causing granular disintegration of the rock.
7.
FLASHCARD QUESTION
Front
What causes erosion in arid regions?
Back
Erosion can be caused by wind, water, or gravity. Intense thunderstorms can cause flash floods with significant erosional power.
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