How are igneous, sedimentary and metamorphic rocks formed?

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Solution

Dear Student,
Igneous Rocks- Rocks formed by the cooling of magma inside the Earth or on the surface.

Sedimentary rocks- Rocks formed from the products of weathering by precipitation on the Earth's surface.

Metamorphic rocks- Rocks formed by temperature and pressure changes inside the Earth.
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Similar questions

Q. Sometimes igneous and sedimentary rocks are changed into metamorphic rocks.

Consider the following statements
1. Igneous rocks are the oldest rocks, while metamorphic are being derivative of igneous rocks and sedimentary rocks.
2. Resistance to weathering and erosion is less to metamorphic rocks compared to igneous rocks
3. Tendency to react with acids is higher to metamorphic rocks when compared to igneous rocks.
Which of the above statement(s) is/are correct?

Q. The igneous and sedimentary rocks due to the influence of ______________ get transformed into metamorphic rocks.

Q. ..........are the changed form of Igneous and Sedimentary rocks

Tick the correct answer.

(i) The rock which is made up of molten magma is

(a) Igneous

(b) Sedimentary

(ii) The innermost layer of the Earth is

(a) Crust

(b) Core

(iii) Gold, petroleum and coal are examples of

(a) Rocks

(b) Minerals

(iv) Rocks which contain fossils are

(a) Sedimentary rocks

(b) Metamorphic rocks

(v) The thinnest layer of the Earth is

(a) Crust

(b) Mantle

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