Article Detail Earth Day Answer: 22 April Similar Questions : 1. World Post Office Day Answer: 9 October 2. World Animal Welfare Day Answer: 4 October 3. World Ozone Day Answer: 16 September 4. World Marriage Day Answer: Second Sunday of february 5. World Environment Protection Day Answer: 26 November 6. World Asthma Day Answer: 3rd May 7. Quit India Day Answer: 9th August Read more from - Important Days of Year