Mass Movement (Leaving Cert Geography): Flashcards
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10 cards from this deck
What is Mass Movement?
What is Mass Movement?
Downhill movement of soil, rock, and debris by gravity.
How does slope affect Mass Movement?
How does slope affect Mass Movement?
Steeper slopes increase the likelihood of mass movement.
What role does water play in Mass Movement?
What role does water play in Mass Movement?
Water adds weight and reduces friction, promoting movement.
What human activities trigger Mass Movement?
What human activities trigger Mass Movement?
Construction, deforestation, and mining can destabilise slopes.
How does vegetation cover impact slopes?
How does vegetation cover impact slopes?
Roots stabilize soil; absence increases mass movement risk.
What is Regolith?
What is Regolith?
Layer of loose material covering solid rock, involved in mass movement.
What can saturated soil lead to?
What can saturated soil lead to?
Saturated soil can cause mudflows and landslides.
Why is gravity important in Mass Movement?
Why is gravity important in Mass Movement?
Gravity exerts more force on steep inclines, causing movement.
What happens to drainage due to human activity?
What happens to drainage due to human activity?
Human activities can alter drainage and increase movement risk.
Why is Mass Movement important?
Why is Mass Movement important?
It plays a key role in shaping landscapes over time.