Question

define rock cycle . mention various types of rocks in brief...​

Answer 1

Answer:

The three main rock types are igneous, sedimentary, and metamorphic. Crystallization, erosion and sedimentation, and metamorphism transform one rock type into another or change sediments into rock. The rock cycle describes the transformations of one type of rock to another.

Answer 2

Answer:

Here is your answer .....

Q.Defination of rock cycle?

One type of rock changes to another type under certain conditions in a cyclic manner. this process of transformation of the rock from one to another is known as the rock cycle or with heating, melting,erosion, deposition, and chemical action one group of rocks leads to the formation of another group and this cyclic formation and development of rocks is known as rock cycle.

Various types of rocks in brief

Rocks are of the three types:

1. Igneous rocks

2 Sedimentary rocks

3 Metamorphic rocks

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.

• Extrusive rocks: When molten lava comes on the earth's surface, it rapidly cools down and becomes solid. Rocks formed in this way on the crust Eire called extrusive igneous rocks. For example, basalt.
• Intrusive rocks: Sometimes the molten magma cools down deep inside the earth's crust. Solid rocks so formed are called intrusive igneous rocks. Since they cool down slowly they form large grains. For example, granite.

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.

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