where do rocks come from? i need to know really badly so please answr!!!
2006-11-28 11:17:34 · 2 answers · asked by lagunachick30 1 in Education & Reference ➔ Quotations
The simple answer is that rocks come from magma.
If you need more detail, then igneous rocks are formed by magma, either under the earth's crust, or by magma that erupts through the earth's crust (lava). All rocks have crystals, and the number of crystals a rock has depends on how slowly or quickly the magma cools and that is why there is more than one kind of igneous rock. Then there are metamorphic rocks, which are igneous rocks that over time, due to heat and the earth's pressure, have morphed into a different rock. And then there are sedimentary rocks. These are igneous and metamorphic rocks that have eroded into layers of sediment and over time and the earth's pressure have formed into rocks.
2006-11-28 13:37:07 · answer #1 · answered by M S 4 · 0⤊ 0⤋
they come from fossils inside the earths crust
2006-11-28 11:31:22 · answer #2 · answered by sunflare63 7 · 0⤊ 0⤋