Magnetite particles, suspected to cause neurodegenerative problems, are generated as environmental…

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.
  1. 1, 2, 3 and 5 only
  2. 1, 2 and 4 only
  3. 3, 4 and 5 only
  4. 1, 2, 3, 4 and 5

Solution

Magnetite nanoparticles, linked to Alzheimer's-like neurodegeneration, are released from friction sources such as brakes and engines of motor vehicles, and from power plants. Microwaves and telephone lines do not release magnetite particles.

Asked in: UPSC Prelims 2021

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