describe igneous rocks .
Answers
Answered by
6
Answer:
Igneous rock, any of various crystalline or glassy rocks formed by the cooling and solidification of molten earth material. Igneous rocks constitute one of the three principal classes of rocks, the others being metamorphic and sedimentary.
Answered by
0
igneous rocks form when melted rock (magma or lava) cools and metamorphic are rocks that once were igneous
Sedimentary rocks are usually formed under water when grains of broken rocks are glued together
Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form.
Similar questions