Glaciers from the ice age left behind deposits of gravel and sand used in building materials.
How did glaciers affect modern industry in the Cascades? (1 point) Responses Glaciers from the ice age left behind deposits of gravel and sand used in building materials. Glaciers from the ice age left behind deposits of gravel and sand used in building materials. Glaciers trapped water from rivers, making travel through the mountains more difficult. Glaciers trapped water from rivers, making travel through the mountains more difficult. Retreating glaciers deposited volcanic ash, creating rich farmland in the Cascades. Retreating glaciers deposited volcanic ash, creating rich farmland in the Cascades. Retreating glaciers made it so the Cascades are unable to support forests.
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