“World Wetlands Day” is celebrated on what date? A) 4 January B) 2 February C) 4 February D) 4 October Related MCQs: “World Cancer Day” is celebrated on what date? International Nurses Day is celebrated on which of the following date every year all over the world? World Wetlands day is observed on…. every year? International Holocaust Remembrance Day is celebrated on which date every year?