Civil Services Examination · प्रश्न 11
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?
उत्तर देखें और व्याख्या
उत्तर: (B) Both Statement II and Statement III are correct but only one of them explains Statement I
व्याख्या
Both II and III describe true parts of the cement-making process, but only the calcination in III (releasing CO2 from limestone) explains the high emissions in I.