Current Affairs
Ecology and Environment
Economy
Geography
History of India
Indian Polity and Governance
Science and Technology
1
UPSC Civil Service Prelims Paper I 2021 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66
Consider the following statements :
1. Adenoviruses have single-stranded DNA genomes whereas retroviruses have double-stranded DNA genomes.
2. Common cold is sometime caused by an adenovirus whereas AIDS is caused by a retrovirus.
Which of the statements given above is/are correct?
2
UPSC Civil Service Prelims Paper I 2021 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66
Magnetite particles, suspected to cause neurodegenerative problems are generated as environmental pollutants from which of the following?
1. Brakes of motor vehicles
2. Engines of motor vehicles
3. Microwave ‘Stoves within homes
4. Power plants
5. Telephone lines
Select the correct answer using the code given below.
Paper Analysis
Total Questions
Current Affairs 4
Ecology and Environment 20
Economy 12
Geography 8
History of India 20
Indian Polity and Governance 24
Science and Technology 12
More Papers of UPSC Civil Service
UPSC Civil Service Prelims Paper II 2025 (CSAT) UPSC Civil Service Prelims Paper I 2025 (General Studies) UPSC Civil Service Prelims Paper II 2024 (CSAT) UPSC Civil Service Prelims Paper I 2024 (General Studies) UPSC Civil Service Prelims Paper II 2023 (CSAT) UPSC Civil Service Prelims Paper I 2023 (General Studies) UPSC Civil Service Prelims Paper II 2022 (CSAT) UPSC Civil Service Prelims Paper I 2022 (General Studies) UPSC Civil Service Prelims Paper II 2021 (CSAT) UPSC Civil Service Prelims Paper I 2021 (General Studies)
UPSC Civil Service Papers
All year-wise previous year question papers
2025
2024
2023
2022