Earth Day is an international day dedicated to celebrating the planet's environment and raising awareness about pollution and other environmental issues.
The specific date observed worldwide each year for Earth Day is:
This date was chosen to support the event and its goals effectively.
Therefore, the correct option corresponding to Earth Day is $22^{nd}$ April.
National Youth Day is celebrated on the birthday of:
When is National Hindi Divas celebrated?
'World Water Day' is celebrated on _____ of every year.
International Biodiversity Day is celebrated on:
On 22 March 1992 United Nations Conference of Environment and Development in which city international initiative for World Water Day was taken ?