1
UPSC Civil Service Prelims Paper I 2025 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66

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?

A

Both Statement II and Statement III are correct and both of them explain Statement I

B

Both Statement II and Statement III are correct but only one of them explains Statement I

C

Only one of the Statements II and III is correct and that explains Statement I

D

Neither Statement II nor Statement III is correct

2
UPSC Civil Service Prelims Paper I 2025 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66

With reference to 'Direct Air Capture', an emerging technology, which of the following statements is/are correct?

I. It can be used as a way of carbon sequestration.

II. It can be a valuable approach for plastic production and in food processing.

III. In aviation, it can be a source of carbon for combining with hydrogen to create synthetic low-carbon fuel.

Select the correct answer using the code given below.

A

I and II only

B

III only

C

I, II and III

D

None of the above statements is correct

3
UPSC Civil Service Prelims Paper I 2025 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66

Consider the following statements:

Statement I: Some rare earth elements are used in the manufacture of flat television screens and computer monitors.

Statement II: Some rare earth elements have phosphorescent properties.

Which one of the following is correct in respect of the above statements?

A

Both Statement I and Statement II are correct and Statement II explains Statement I

B

Both Statement I and Statement II are correct but Statement II does not explain Statement I

C

Statement I is correct but Statement II is not correct

D

Statement I is not correct but Statement II is correct

4
UPSC Civil Service Prelims Paper I 2025 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66

Artificial way of causing rainfall to reduce air pollution makes use of

A

silver iodide and potassium iodide

B

silver nitrate and potassium iodide

C

silver iodide and potassium nitrate

D

silver nitrate and potassium chloride

UPSC Civil Service Subjects

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Comprehension
Data Interpretation and Sufficiency