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Continental Crust

Continental crust floats on top of the earths surface. it consists mostly of granite and metamorphic rocks. it has many different rocks and materials that make it up. rocks which form the continents and the areas of shallow seabed close to their shores, known as continental shelves.The continental crust is the layer of igneous, sedimentary, and metamorphic rocks which forms the continents and the areas of shallow seabed close to their shores, known as continental shelves.Because continental crust mainly lies above sea level, its existence allowed land life to evolve from marine life.Because continental crust mainly lies above sea level, its existence allowed land life to evolve from marine life. Its existence also provides broad expanses of shallow water known as epeiric seas and continental shelves where complex metazoan life could become established during early Paleozoic time. If Earth were like the other silicate planets and lacked the duality of oceanic and continental crust, our planet would be a very different place and the evolution of Homo sapiens and civilization might have been impossible.

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