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Flura [38]
3 years ago
9

An allotrope of carbon that is hard and is often used in jewelry is____

Biology
1 answer:
Goryan [66]3 years ago
8 0

Answer:

Diamond

it's hardness and dispersion of light make it useful in making jewelries and industrial applications

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What is theory of to observe the neucles in cheek cells​
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Answer: The theory of cheek cells is used for the identification of cheek cells.

Explanation:

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an igneous rock forms quickly. which characteristics could the rock have? small sand grains. Large mineral crystals. smooth, sha
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Igneous rocks are formed by hot melted magma coming from the Earth's core that crystalizes when gets in contact with air. They can be either intrusive or extrusive. B) <em>Large mineral crystals.</em>

<h3>What is the igneous rock?</h3>

These rocks come straight from the interior of the Earth.

A liquid mass of silicate composition comes from the Earth's core. This melted mass comes at an extremely high temperature.

Magma begins to cool and solidify during its ascent to the Earth's surface. It solidifies and crystallizes into igneous rock following the magnetic field orientation.

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• plutonic rocks ⇒ in areas close to the terrestrial crust ⇒ intrusive

• volcanic rocks ⇒ on the surface ⇒ extrusive

According to this description, the correct option is B. <em>Large mineral </em><em>crystals</em><em>.</em>

You can learn more about Igneous rocks at

brainly.com/question/23555197

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