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地球深部炽热的岩浆沿通道上升,穿过地球表层薄弱的地方喷出地面,我们把这一过程称为火山喷发。火山喷发出来的熔岩和碎屑流等物质围绕喷口堆积形成的不同形状的山丘就是火山。与我们常见的连绵起伏的山脉不同的是,火山大多呈现出孤
The deepening magma of the Earth rises up the passageway and spews out of the ground through the weakest parts of the Earth’s surface. We call this process a volcanic eruption. Volcanic eruptions of lava and debris flow and other materials stacked around the spout formed by the formation of different types of hills is volcano. Unlike our common rolling mountains, volcanoes are mostly solitary