A glacier is nothing more than a frozen river still moving. It might only move an inch or two per year, but it still moves and this ice will erode the ground and rock below it faster and more...
Plants can break rock to pieces from roots growing in cracks of the rock. Plants can also help preserve landforms by preventing erosion by wind or water.
Glaciers are huge chunks of snow and ice most time more than 1000 feet thick. They weigh huge amount and overtime become so condensed that they are harder than the rock they are on top of. They move...