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Temperature, precipitation, soil, and length of day affect the survival and distribution of biome species. Species diversity within a biome may increase its stability and capability to deliver natural services, including enhancing the quality of the atmosphere, forming and protecting the soil, controlling pests, and providing clean water, fuel, food, and drugs. Major biomes include the temperate, tropical, and boreal forests; tundra ; deserts ; grasslands; chaparral ; and oceans.

IDENTIFICATION: Large freshwater lake bordering Ontario, Canada, and the U.S. states of Michigan, Ohio, Pennsylvania, and New York