What is plucking?
When rocks become frozen into the glacier and are 'plucked' out when the glacier moves
When rocks scrape the bottom of the corrie
When cracks in rocks fill with water and freeze when it is colder
Which type of erosion makes the corrie deeper?
Abrasion
Plucking
Freeze-thaw weathering
When is a pyramidal peak formed?
When a corrie erodes backwards
When two corries erode backwards towards each other
When three or more corries erode backwards towards each other
What is moraine?
Sand transported by a glacier
Any material transported by a glacier
Rocks transported by a glacier
How many types of moraine are there?
One
Two
Three
What is lateral moraine?
Material found in the middle of the glacier
Material found at the end of the glacier
Material found along the edges of the glacier
What is a ribbon lake?
A long, thin lake found in the valley bottom
A lake found in a corrie
A lake found near the sea
What is a drumlin?
A large boulder of different rock type
A mound of deposited glacial material
An outcrop of hard resistant rock that was not eroded by the glacier
What is Striding Edge in the Lake District an example of?
A tarn
A pyramidal peak
An arête
What is Cwm Idwal in Snowdonia an example of?
A corrie
A drumlin