Question

what is a tank how were they built answer
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Answer 1

Explanation:

On the basis of composition, matter can be classified as compound, element and mixture. Solids, liquids and gases are physical states of matter

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Answer 2

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What is a tank ? How were they built?

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Tank, any heavily armed and armoured combat vehicle that moves on two endless metal chains called tracks.

Modern tanks are versatile mobile land weapon system platforms that have a mounted large-calibre cannon called tank gun in a rotating gun turret supplemented by mounted machine guns or other weapons such as anti-tank guided missiles or rockets. They have heavy vehicle armour which provides protection for the crew, the vehicle's weapons and propulsion systems.