Question

In these features, strain rate is approximately proportional to the cube of basal shear stress according to Glen’s flow law. These features’ equilibrium line altitudes may limit vertical growth as (20[1])they act as hypothetical “buzzsaws.” (20[1])Firn increases in density (20[1])and undergoes pore closure before being incorporated into these features. (20[1])A disappearance of many of these features caused (20[1])isostatic (20[1])rebound. (20[2])These objects’ (20[1])“health” (20[1])is measured (20[1])by their (*) mass balance, which is negative during these features’ climate change-driven (10[1])“retreat.” (10[9])These (10[1])features (10[5])can leave behind (10[1])namesake (10[1])lakes (10[2])and form moraines by depositing till. For 10 points, name these large, slow-moving masses of ice. (10[4])■END■ (10[1])

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