Question

What is igneous rock ,sedimentary rock and metamorphic rock?

Answer 1

Answer:

Igneous rocks:

Hot lava pours out at the time of volcanic erruptions and cools down later on,forming rocks.

The molten materials known as magma, sometimes cool down beneath the earths crust,again forming rocks.

Both these types of rocks are known as igneous rocks.

Examples:granite,pumic stone,basalt and Gabbro.

Sedimentary rocks:

They are formed by the deposition,sedimentation and lethification of sediments over a long period of time.

Examples: sandstone, limestone , shale.

limestone is white as well as black.

Metamorphic rocks:

The nature of igneous and sedimentary rocks changes due to the effects of tremendous heat or pressure , and new, transformed rocks are formed.

hope it helps you

Answer 2

Answer:

Igneous rock

, formed by the cooling of magma (molten rock) inside the Earth or on the surface.

Sedimentary rocks,

formed from the products of weathering by cementation or precipitation on the Earth's surface.

Metamorphic rocks,

formed by temperature and pressure changes inside the Earth.