"TYPES OF ROCKS"

Igneous Rock-Rocks formed by the cooling and solidifying of molten materials. Igneous rocks can form beneath the Earth's surface, or at its surface, as lava.

Sedimentary Rock-Rock that has formed through the deposition and solidification of sediment, especially sediment transported by water (rivers, lakes, and oceans), ice (glaciers), and wind. Sedimentary rocks are often deposited in layers, and frequently contain fossils.

Metamorphic Rock-Rock that was once one form of rock but has changed to another under the influence of heat, pressure, or some other agent without passing through a liquid phase.

I understand that the Igneous,Sedimentary,and the Metamorphic rock are different to each other.Because Igneous rock is seen in the volcanic activity, and the sedimentary are seen in the beaches etc.,and the last is Metamorphic Rock, the metamorphic rock is seen in our surrounding.That's why I realize that they are difference to each other.And there is a similarities.The similarities are they both types of Rock...