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13 April, 03:03

Which statement defines an ore?

A) Rock broken down to become part of the topsoil.

B) Rock dug out from the earth to use in construction.

C) Rock dug out from the deep inside earth and refined.

D) Rock exposed as a result of loss of topsoil.

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Answers (2)
  1. 13 April, 03:26
    0
    According to E2020, the correct answer to this problem is C. Rock dug out from the deep inside earth and refined.
  2. 13 April, 03:32
    0
    Answer: C. Rock dug out from the deep inside earth and refined.

    A rock is a mixture of two or more minerals. An ore is present in rock that contains minerals. Ores are obtain when the rocks are dug out from the earth by the process of mining after that the mineral composition in the rock is concentrated by refining process which involve the removal of unwanted extraneous substances example gangue.
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