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

QUESTION

Hard

Environment & Ecology

Prelims 2021

Magnetite particles, suspected to cause neurodegenerative problems, are generated as environmental pollutants from which of the following?

Brakes of motor vehicles
Engines of motor vehicles
Microwave stoves within homes
Power plants
Telephone lines

Select the correct answer using the code given below

Select an option to attempt

Explanation

Magnetite particles, which are suspected to cause potential neurodegenerative problems, are generated as environmental pollutants from the following sources

1. Brakes of motor vehicles - The friction between brake pads and brake discs/drums can generate magnetite particles that are released into the environment.

2. Engines of motor vehicles - The high-temperature combustion processes in vehicle engines can also produce magnetite particles as a byproduct.

4. Power plants - The high-temperature industrial processes involved in power generation, such as coal-fired power plants, can lead to the release of magnetite particles into the environment.

The other options (3. Microwave stoves within homes and 5. Telephone lines) are not major sources of magnetite particle pollution.

Therefore, the correct answer is the combination of options 1, 2, and 4.

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