Trading blocs.
Or Acronyms.
Plate tectonics is a theory that the Earth's outer crusts are divided into seven plates that glide over the mantle. They are often blamed for earthquakes.
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Answer: The biogeographic Amazon ranges from 7.76-8.24 million sq km (3-3.2 million sq mi), of which just over 80 percent is forested. For comparison, the land area of the United States (including Alaska and Hawaii) is 9,629,091 square kilometers (3,717,811 sq km). Nearly two-thirds of the Amazon lies in Brazil.
Explanation: