SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a solid metal
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a rock cantaining a metal combined with other elements
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an element
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an object used to row a boat
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Detailed explanation-1: -Ores are naturally occurring rocks that contain metal or metal compounds in sufficient amounts to make it worthwhile extracting them.
Detailed explanation-2: -Metal ores (also called gross ores) are all the materials which are removed from the mine for the purpose of extracting the desired metal(s). Materials which are removed from the mine for the sole purpose to get access to the reserve, but are then left at the site, are not included.
Detailed explanation-3: -Ore is a deposit in Earth’s crust of one or more valuable minerals. The most valuable ore deposits contain metals crucial to industry and trade, like copper, gold, and iron. Copper ore is mined for a variety of industrial uses.
Detailed explanation-4: -Ore is the rock from which the metal is extracted in a convenient and economical way. Ore has a composition that is definite. Metals that occur naturally in the earth’s crust are called minerals. Minerals that can profitably be used to get the metal are called ores.