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

Consider the following statements:

I. No virus can survive in ocean waters.

II. No virus can infect bacteria.

III. No virus can change the cellular transcriptional activity in host cells.

How many of the statements given above are correct?

A

Only one

B

Only two

C

All the three

D

None

2
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

3
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

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

$$ \text { Consider the following pairs: } $$

Plant Description
I. Cassava Woody shrub
II. Ginger Herb with pseudostem
III. Malabar spinach Herbaceous climber
IV Mint Annual shrub
V. Papaya Woody shrub
How many of the above pairs are correctly matched?
A

Only two

B

Only three

C

Only four

D

All the five