Which statement about the rocks and earth crust is most accurate? A. Most rocks

Question

Which statement about the rocks and earth crust is most accurate? A. Most rocks on earth are unchanged since they formed 4.5 billion years ago. B. Igneous rocks can become sedimentary rocks, but sedimentary rocks cannot become igneous rocks. C. Because rocks move through the rock cycle so quickly, most rocks on earth are less than 10 million years old. D. Any single silicon atom on earth has likely existed in a number of different mineral crystals with a number of different types of rocks. Which statement about the rocks and earth crust is most accurate? A. Most rocks on earth are unchanged since they formed 4.5 billion years ago. B. Igneous rocks can become sedimentary rocks, but sedimentary rocks cannot become igneous rocks. C. Because rocks move through the rock cycle so quickly, most rocks on earth are less than 10 million years old. D. Any single silicon atom on earth has likely existed in a number of different mineral crystals with a number of different types of rocks. A. Most rocks on earth are unchanged since they formed 4.5 billion years ago. B. Igneous rocks can become sedimentary rocks, but sedimentary rocks cannot become igneous rocks. C. Because rocks move through the rock cycle so quickly, most rocks on earth are less than 10 million years old. D. Any single silicon atom on earth has likely existed in a number of different mineral crystals with a number of different types of rocks.

Explanation / Answer

B. Igneous rocks can become sedimentary rocks, but sedimentary rocks cannot become igneous rocks.

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