Attempt this previous-year question. The correct option stays hidden until you choose.
Consider the following statements:
Statement I: Studies indicate that carbon dioxide emissions from cement industry account for more than 5% of global carbon emissions.
Statement II: Silica-bearing clay is mixed with limestone while manufacturing cement.
Statement III: Limestone is converted into lime during clinker production for cement manufacturing.
Which one of the following is correct in respect of the above statements?
Pick an option to check yourself.
• Correct Answer: B
• Cement industry accounts for ~7-8% of global CO₂ emissions.
• Silica-bearing clay is mixed with limestone (Statement II true but non-explanatory).
• Limestone calcination (CaCO₃ → CaO + CO₂) during clinker production directly explains the high emissions.
Attempt Prelims MCQs or open Mains questions by paper — then continue the same bank inside the app with visual decks.
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