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

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