Answer:
Energy production and use present environmental impacts, but the present consumption ... Brazilian electricity matrix has a strong hydraulic base
Explanation:
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Answer:
Vatican City is the smallest country in the world
Answer:
Volcanoes are found on both land and the ocean floor. When volcanoes erupt on the ocean floor, they often create underwater mountains and mountain ranges as the released lava cools and hardens. Volcanoes on the ocean floor become islands when the mountains become so large they rise above the surface of the ocean.
Explanation:
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It is caused by volcanic activity that create new crust. As the intrusive volcanism occurs undersea,the lava would fill the crack then cooling down to form new crust. The crust is then expanded and pushing the rest of the crust sideway causing seafloor spreading.
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Answer: Partial melting
Explanation: Partial melting occurs when the temperature is high enough to melt some of the materials that make up a rock but not all. This happens because a rock is not made up of a single material but different materials which have different melting points.
As the molten or melted rock cools down it crystallizes in a process known as fractional crystallization and this is how igneous rocks are formed.
