Question

How many different types of rocks are there?

Answer 1

Hint:
Rocks can be characterized as normally happening totals of mineral and mineraloid substance. It tends to be characterized into various classifications depending on the minerals they incorporate, their synthetic organization, and how they were shaped.

Complete Answer:
Based on the manner of their formation, the rocks can be divided into three categories namely, Igneous rocks, Sedimentary rocks, and metamorphic rocks.
Igneous rocks: Igneous rocks are also called magmatic rocks. These are formed by the cooling of molten lava or magma. These might likewise be shaped from crystallization to frame precious stones inside the stones. The liquid magma can either crystalize inside the world's surface or above it. At the point when the magma sets beneath the surface, it is called meddlesome volcanic stone and when it crystalizes over the surface, it is called extrusive molten stone.
Sedimentary rocks: These stones were framed when the particles of minerals or natural materials chose the stone beds and ocean beds. Because of its humongous weight, these silt were established to frame rocks. At the point when pteridophytes, backwoods, and bogs fell, they were covered under such silt framing tremendous assets of hydrocarbons in the huge number of years. These hydrocarbons are utilized as fills and are known as petroleum products. E.g.: Coal, petroleum.
Metamorphic rocks: These rocks are formed from the transformation of existing rocks. This process is known as metamorphosis. The change of temperature and pressure causes these transitions in older rocks. There are layers formed in these rocks and this process of formation of layers is known as foliation.

Note:
The fossils of dinosaurs, wiped out plants, and creatures are regularly discovered caught in these sedimentary rocks. They help in deciding the greenery of the world's past. This order of science that reviews fossils is known as Paleontology.