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EnglandGeographyQuick questions
Component 1: Changing Landscapes and Changing Places
Quick questions on Glaciated systems and processes - Eduqas A-Level Geography
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is the glacier as an open system?Show answer
A glacier is an open system of inputs, stores, transfers and outputs. Snow accumulates in the zone of accumulation, is compacted through firn into glacier ice, and flows downslope under gravity into the zone of ablation where it is lost. Movement occurs by internal deformation (the ice deforms under its own weight) and, where meltwater is present, by basal sliding over a lubricated bed. The position of the snout reflects the budget over recent years: when accumulation outpaces ablation the glacier advances, and when ablation dominates (as under contemporary warming) it retreats.
What is q1?Show answer
Define the equilibrium line of a glacier. [2 marks]
What is q2?Show answer
Explain why warm-based ice erodes more than cold-based ice. [3 marks]
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