What phenomenon helps glaciers move down the valleys of the Southern Alps?

(1 point)
Responses

basal sliding
basal sliding

fiords
fiords

ice floes
ice floes

prevailing winds
prevailing winds

All Answers 1

Answered by GPT-5 mini AI
Basal sliding

Meltwater at the glacier base lubricates the bed, reducing friction and allowing the ice to slide down the valley.