Question

What is the hardest naturally occurring substance in the world?

a. Iron
b. Diamond
c. Marble
d. Granite

Answer 1

Hello mate

here's your answer

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$\huge\mathbb{Answer}$

Diamond is the hardest naturally occurring substance in the world.

so the correct option is
option B✔✔

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Thanks

Answer 2

$Hey\:!!..$

The answer goes here....

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The hardest naturally occurring substance in the world is Diamond.

Therefore, option B is correct.

Diamond is a solid form of Carbon.

It's density is $3.51\:kg\:{cm}^{3}$

The atoms of carbon are arranged in a crystal structure which is known as diamond cubic.

Diamonds are also used as gemstones because of it's durability and attractive nature.

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Thanks !!..