Question

which statement defines an ore? rock broken down to become part of the topsoil. rock dug out from the earth to use in construction. rock dug out from the deep inside earth and refined.

Explanation:

An ore is a rock that is dug out from deep inside the earth and contains valuable minerals which are refined to extract the useful substances. The first two options describe rocks for different non - ore related purposes (becoming topsoil and construction), and the fourth option seems to be cut off and is unclear. But the third option correctly describes the nature of an ore.

Answer:

Rock dug out from the deep inside earth and refined.