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TEA [102]
3 years ago
7

What are the three main groups of rocks and how are they formed

Biology
1 answer:
mariarad [96]3 years ago
6 0
The main three groups of rocks are metamorphic, sedimentary, and igneous. Igneous rocks are formed from melted lava and volcanic ashes. Metamorphic is a mixture of sedimentary and igneous and sedimentary are formed at or near the eat the surface by accumulation of sediment.
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