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Question
Which one of the following minerals is formed by decomposition of rocks, leaving a residual mass of weathered material?
Which one of the following minerals is formed by decomposition of rocks, leaving a residual mass of weathered material?
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Solution
The correct option is B bauxite
Coal- formed of organic material deposited one layer above the other. Across millions of years, due to physical and chemical changes, oxygen was forced out and was left with carbon-rich deposits.Bauxite- Formed mainly by weathering of aluminous rocks.
Coal- formed of organic material deposited one layer above the other. Across millions of years, due to physical and chemical changes, oxygen was forced out and was left with carbon-rich deposits.
Bauxite- Formed mainly by weathering of aluminous rocks.
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