The Evolution of Lake Champlain Basin (632 words, 3 pages)
The Evolution of Lake Champlain BasinA billion years ago, Lake Champlain and all of North America was covered by huge glaciers. The air was rich in oxygen because of photosynthesis done by plants.The Adirondacks MountainsMountain-building events made the then 20,000 feet Adirondack Mountains. Minerals such as garnet, anorthosite, and diopside ...
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