Glaciation 1.2.1 - Quiz 0.0 / 5 ? GeographyGlaciated LandscapesASWJEC Created by: BluJay117Created on: 29-09-18 13:26 A glacier is an example of what kind of system Open 1 of 7 What affects the growth and retreat of a glacier? The amount of precipitation put into the glacial system 2 of 7 A positive regime occurs when... Accumulation exceeds ablation 3 of 7 Changes in mass balance affect the long term behaviour of a glacier. Explain: Sustained positive or negative balances put the glacier out of equilibrium and will cause the glacier to advance or retreat respectively 4 of 7 Equilibrium can be restored to the glacier when one of two things occur. What are those two things? Calving losses, and the loss of the lowest portion reducing ablation 5 of 7 What is the key symptom of a glacier in disequilibrium with its local climate? Thinning along the entire length of the glacier 6 of 7 Give an example of a positive feedback loop within a glacial system As the climate warms sunlight is absorbed where dark soil is exposed; light absorption speeds us warming, exposing more dark soil. 7 of 7
Comments
No comments have yet been made