1
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.
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