Cool Britania

Question 1

Glacial landscapes

Answer 1

Glaciers shape the land through processes of erosion, weathering, transportation and deposition, creating distinct landforms. They erode pre-existing upland landscapes, production erosional landforms like U shaped valleys etc. These remain in relic landscapes when the Ice age ends. This leads to landscapes such as drumlin fields and boulder clay forming

Question 2

Glacial processes

Answer 2

Abrasion - as the glacier moves downhill, rocks that have been frozen into the base and sides of the glacier scrape the rock beneath
Plucking - rocks become frozen into the bottom and sides of the glacier. As the glacier moves downhill it ‘plucks’ the rocks frozen into the glacier from the ground.

Question 3

Indirect impacts of ice

Answer 3

The indirect effects of glaciations are considered to be associated with the lowering of sea level during the last Ice Age and the subsequent rise of sea level that coincided with the melting of the ice-age ice sheets and glaciers. Melting ice raises sea levels ( eustatic change ). Melting ice in the North area causes isostatic rebound , the north is rising, while the south is sinking.