Question

Explain Alotropy of iron with the help of its changing physical nature inside the earth due to temperature & pressure​

Answer 1

Answer:

Explanation:

At atmospheric pressure, three allotropic forms of iron exist: alpha iron (α-Fe), gamma iron (γ-Fe), and delta iron (δ-Fe). At very high pressure, a fourth form exists, called epsilon iron (ε-Fe). Some controversial experimental evidence suggests the existence of a fifth high-pressure form that is stable at very high pressures and temperatures.

Answer 2

Question:- What are the uses of rocks?

What are metamorphic rocks?

Ans:- Rocks are used for many purposes but some of them that we can see in our daily life are cited below :

Making Cement (Limestone) (Sedimentary Origin)

Writing (Chalk) (Sedimentary Origin)

Building Material (Sandstone) (Sedimentary Origin)

Bath Scrub (Pumice) (Igneous Origin)

Kerb Stone (Granite) (Igneous Origin)

Roofing Material (Slate) (Metamorphic Origin)

Statue/Ornaments/Decoration (Marble) (Metamorphic Origin)

Valuable source of minerals (Gold, Diamond, Sapphire e.t.c)

Some rocks acts as tourist attraction sites.

Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.