mention various types of rocks and also describe its features
Answers
Answer:
The three main types or classes of rocks are sedimentary and metamorphic and igneous. Sedimentary rocks are formed from particles of sand, shells,pebbles and other fragments of metarials. Together all particles are called sediments .Examples :limestone
Ans: Rocks are of the three types:
1. Igneous rocks: When the molten magma cools, it becomes solid. Rocks formed in this way are called igneous rocks. They are also called primary rocks. They are of two types—intrusive rocks and extrusive rocks.
2. Sedimentary rocks: Small fragments of rocks are called sediments. These sediments are transported and deposited by wind, water, etc. These loose sediments are compressed and hardened to form sedimentary rocks. For example, sandstone is made from grains of sand.
3. Metamorphic rocks: When igneous and sedimentary rocks Eire subjected to great heat and pressure, they change into metamorphic rocks. For example, clay changes into slate and limestone into marble.