what is element...???
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A. Tick the correct answer:
1. Minerals are a .... resource :
(a) Renewable
(b) Mining
(c) Non - renewable
(d) Open - cost
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A substance that cannot be broken down into simpler substances by chemical means. An element is composed of atoms that have the same atomic number, that is, each atom has the same number of protons in its nucleus as all other atoms of that element.
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