Task: Text Categorization
Input (English): Alternating light and dark bands found at the base of these geological formations are known as ogives (OH-jives). These formations erode the surrounding terrain through processes known as plucking and abrasion. Such erosion can lead to the development of indentations known as (*) cirques (SEERKS), which often have small lakes referred to as tarns. They form crevasses on their surface. For 10 points, name these large flows of ice.
Output (English): Science