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polar, temperate and tropical zones
areas where the Earth's surface is heated differently because the light from the Sun strikes the Earth more directly at the equator than at the poles
occurs in areas surrounding the Mediterranean Sea on the western coasts of North and South America, and in South Afrida and Australia
biome that is characterized by fertile soils that are able to support a thick cover of grasses
characterized by grasses and scattered trees in climates that receive less precipitation than some other tropical areas
do not fit the definition of a biome because their climate characteristics and plant and animal life vary depending on elevation
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