Choose the grammatically correct sentence: The air quality in Karachi is becoming more worst than it was a decade ago, The air quality in Karachi is becoming more worse than it was a decade ago, The air quality in Karachi is becoming worse than it was a decade ago, The air quality in Karachi is becoming worst than it was a decade ago
Choose the grammatically correct sentence: The air quality in Karachi is becoming more worst than it was a decade ago, The air quality in Karachi is becoming more worse than it was a decade ago, The air quality in Karachi is becoming worse than it was a decade ago, The air quality in Karachi is becoming worst than it was a decade ago
Explanation
The air quality in Karachi is becoming worse than it was a decade ago.
"Worse" is the correct comparative form of "bad."