Explanation
World Environment Day was first 1974 observed in the city of Spokane in the USA . Since 1974 , World Environment Day has been celebrated every year on 5 June. In 1972, the United Nations General Assembly established World Environment Day World Environment Day Also called Eco Day The Official name of World Environment Day is UN World Environment Day What is the theme of World Environment day 2021 ? Ecosystem Restoration What is the theme of World Environment Day for the year 2022? Only One Earth How many times did Pakistan host World Environment Day? one time Which of the following country hosted United Nations World Environment Day 2021? Pakistan while World Environmental Health Day is observed on 26 September
