Environmental awareness: Date of World Environment Day (global observance). Identify the fixed date on which World Environment Day is celebrated internationally each year. Choose the correct option.

Given data
The task is to recall the annual date of World Environment Day.

Concept
World Environment Day is the UN’s principal vehicle for encouraging worldwide awareness and action for the environment.

Fact and reasoning
World Environment Day has been observed on June 5 since 1973, marking the opening day of the 1972 Stockholm Conference on the Human Environment.

Common confusions

• April 22 = Earth Day (civil society observance).
• October 16 = World Food Day.
• December 10 = Human Rights Day.
• March 21 = International Day of Forests.