UPSC Mains GS 3 Answer Writing Practice Total questions:
Subjects
Economy Environment Environment & Ecology Environment and Ecology Essay Governance GS GS 3 GS 1 GS 2 GS 3 GS 4 Internal security International Relations Polity Science & Technology Science and Technology Social Justice

  • Answer Writing Practice

  • Mumbai, Delhi and Kolkata are the three mega cities of the country but air pollution is a more serious problem in Delhi as compared to the other two. Why is this so?

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