According to the 'Global Air Quality' study published by the Swiss company IQAir, which of the following country was the most polluted country in the world in 2022?
Answer & explanation
Correct answer: option 4
According to the 'Global Air Quality' study published by the Swiss company IQAir, India fell from the fifth to the eighth most polluted nation in the world in 2022. Chad was the most polluted country in the world in 2022.