In the grade ores, the mineral content is high and impurities are less. In the __ grade ores mineral content is low and impurities are more.

Ferrous and Non ferrous

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Old and new

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High and Low

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Metallic and Non-metallic

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Solution

The correct option is B Old and new
High-grade ore contains a large concentration of the desired mineral. It has less impurities. Low-grade ore has a smaller concentration. It has more impurities.

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Similar questions

Answer the following questions in about 30 words.

(i) Distinguish between the following in not more than 30 words.

(a) Ferrous and non-ferrous minerals

(b) Conventional and non-conventional sources of energy.

(ii) What is a mineral?

(iii) How are minerals formed in igneous and metamorphic rocks?

(iv) Why do we need to conserve mineral resources?

Distinguish between :

(a) a mineral and an ore,

(b) an ore and a metallic compound.

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