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DBQ Essay: The Rock Cycle

143 Words1 Pages
The rock cycle is extremely helpful and useful for scientists all over the world. These scientists use physical geology, which carefully focuses on how rocks form into other rocks (Doc. 2). Also, through the rock cycle, three types of rocks form, which are called igneous rock, sedimentary rock, and metamorphic rock (Doc. 1). The rock cycle is much like the water cycle, but it takes millions of years for a rock to form, wear down, and form again. Also, scientists need the rock cycle to watch how the rocks form overtime (OI). The scientists take careful looks at the rocks to study things like texture, composition, and where the rock came from (OI). That helps them figure out what type of rock it is and what it is useful for. That is why the
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