Distinctively Arid Geomorphological Processes (AQA A-Level Geography): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What type of weathering is most common in hot desert landscapes?
What type of weathering is most common in hot desert landscapes?
Mechanical or physical
What temperature can rock surfaces reach in particularly exposed desert locations?
What temperature can rock surfaces reach in particularly exposed desert locations?
80°C
What is the term for weathering where outer rock layers peel off like onion skin?
What is the term for weathering where outer rock layers peel off like onion skin?
Exfoliation
How does crystal growth contribute to mechanical weathering in deserts?
How does crystal growth contribute to mechanical weathering in deserts?
Salts expand/contract breaking rock
Which mineral forms when water is added to anhydrite through hydration?
Which mineral forms when water is added to anhydrite through hydration?
Gypsum
What creates the red-brown desert varnish seen on many desert rock surfaces?
What creates the red-brown desert varnish seen on many desert rock surfaces?
Oxidised iron & manganese
By what percentage does water expand when it freezes during freeze-thaw weathering?
By what percentage does water expand when it freezes during freeze-thaw weathering?
9%
What is deflation in desert wind erosion?
What is deflation in desert wind erosion?
Wind removing fine loose particles
What is reg or desert pavement?
What is reg or desert pavement?
Coarse pebbles left after deflation
How deep is the Qattara Depression, the deepest deflation hollow, at its lowest point?
How deep is the Qattara Depression, the deepest deflation hollow, at its lowest point?
134 metres below sea level