Use the map to answer the question. How did ice ages affect the land that became western Washington? (1 point) Responses Glaciers carved a large valley that later flooded and became Puget Sound. Glaciers carved a large valley that later flooded and became Puget Sound. Glaciers unclogged large rivers that later formed Lake Missoula. Glaciers unclogged large rivers that later formed Lake Missoula. Ice dams gave way to form scablands that support little life. Ice dams gave way to form scablands that support little life. Coulees formed the Columbia Plateau.
