Article Detail World Population Day Answer: 11th July Similar Questions : 1. World Thrift Day Answer: 30 October 2. National Energy Conservation Day Answer: 14 December 3. National Science Day Answer: 28 February 4. Mother's Day Answer: Second sunday of May 5. Ordnance Factories Day Answer: 18th March 6. Doctor's Day Answer: 1st July 7. Commonwealth Day Answer: Second Monday of March Read more from - Important Days of Year