Correct option is C
The correct answer is (c) 5th June.
· World Environment Day is celebrated annually on 5th June to raise awareness and encourage action for the protection of the environment.
· It was established by the United Nations General Assembly in 1972 during the Stockholm Conference on the Human Environment.
· Each year, World Environment Day has a specific theme and is hosted by a different country. The day serves as a global platform for public outreach, with participation from over 143 countries.
Information Booster:
· 31st May: This date is observed as World No Tobacco Day.
· 30th September: Not associated with any major international environmental observance.
· 12th April: Known for the International Day of Human Space Flight, commemorating the first human spaceflight by Yuri Gagarin.