Gravel is classified as which type of mineral resource?

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Multiple Choice

Gravel is classified as which type of mineral resource?

Explanation:
Classification of mineral resources typically splits them into metallic and nonmetallic groups. Metallic resources are ores from which metals can be extracted, while nonmetallic resources include materials like gravel that don’t yield metals but are valued for other uses. Gravel is an aggregate of rock fragments used mainly as construction material, and it doesn’t contain extractable metals. That’s why it fits the nonmetallic category. It wouldn’t be described as unknown or as both, since its metal content is not present and it isn’t a mix of metallic and nonmetallic resources.

Classification of mineral resources typically splits them into metallic and nonmetallic groups. Metallic resources are ores from which metals can be extracted, while nonmetallic resources include materials like gravel that don’t yield metals but are valued for other uses. Gravel is an aggregate of rock fragments used mainly as construction material, and it doesn’t contain extractable metals. That’s why it fits the nonmetallic category. It wouldn’t be described as unknown or as both, since its metal content is not present and it isn’t a mix of metallic and nonmetallic resources.

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