The Hawaiian Islands are formed on a region of intra plate volcanic activity on the Pacific plate. This region is known as a hot spot. Scientists are not exactly sure what causes this but they do know that a plume of magma rises through the mantle and forces it's way through the crust to form submarine volcanoes and over time volcanic islands.
The magma that rises here originates from the mantle and not crustal melt and so forms basic or basaltic lava.
Many sugar plantations were built in the northeast region of brazil. Brazil is a country that is considered as the largest sugarcane producer in the whole world. The weather in brazil is perfectly suited for the production of sugarcane. Brazil is also famous for the production of cocoa and cotton. The sugarcanes produced go to the factories where sugar is produced and exported to different parts of the world. In the northeast region of brazil oil exploration is also a part of the economy along with tourism. Tourists from different parts of the world come here.
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