Amazon Rain Forest The Amazon forest, which covers about of 2,700,000 square miles (7 million square kilometers), is the world's largest rain forest. Located primarily in Brazil, the Amazon forest accounts more than 20% of tropical forests around the world. known in Brazil as the jungle, the rain forest is a vast reservoir of biological diversity, full of plants and animals, both familiar and exotic. In accordancewith estimates, at least half of all terrestrial species they are found in tropical forests, but many of these species have not yet been identified. Tropical forests contain many valuable resources, including the cacao (chocolate), nuts, spices, rare woods, and plant extracts used to make medicines. Some drugs used in the treatment of cancer and heart disease come from plants found only in tropical forests. Butthe intervention-logging, mining and deforestation by human crops and pasture-put rain forests in great risk. In Brazil, cut roads in the rain forestpaved the way for settlers to clear away the forest only to find very poor soil in nutrients to sustain agriculture for more than a few years ago. Earth is normally eliminated by a method called slash-and-burn, thatcontributes to global warming by releasing large amounts of carbon dioxide the atmosphere.
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