In Glacial topography, a Arête is:

a. A tributary valley whose floor is at a higher level than that of the main valley
b. A bowl-shaped depression that forms at the upper end of glacial troughs
c. A thin ridge formed by the headward erosion of two cirques (on opposite sides of a ridge)
d. A steep-walled pyramidal peak


Answer: c. A thin ridge formed by the headward erosion of two cirques (on opposite sides of a ridge)

Environmental & Atmospheric Sciences

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