![Generally speaking, the atmosphere in big cities is polluted most by](https://www.gkseries.com/blog/wp-content/uploads/2021/12/Generally-speaking-the-atmosphere-in-big-cities-is-polluted-most-by.png)
Q. Generally speaking, the atmosphere in big cities is polluted most by
- Radioactive fall out
- Household waste
- Automobile exhaust
- Pesticide residues
Answer: Automobile exhaust
Answer: Automobile exhaust
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