it is celebrated on 16th december every year.
Ozone day is celebrated to mark the saving of ozone layer. It is celebrated on 16 September.
Branches of ecology include population ecology (study of how populations of organisms interact with their environment), community ecology (study of interactions between species in a given area), ecosystem ecology (study of the flow of energy and matter through ecosystems), and conservation ecology (study of how to protect and preserve biodiversity).
Related disciplines and approaches under ecology include environmental science, conservation biology, population ecology, community ecology, landscape ecology, and ecosystem ecology. These disciplines study interactions between organisms and their environment at different levels of organization, from individuals to ecosystems, to understand how ecosystems function and how they can be managed and conserved.
ecology
Ecology is the study that look at how activities of people vary throughout the world.
15th March is celebrated as world customer day.
World Environment Day is celebrated on June 5th every year.
World Peace Day is celebrated on the 21st of September.
World Science Day is celebrated on 28th February.
World no tobacco day is celebrated on 31st of May.
World asthma day is celebrated may, 4.
world food day is celebrated on 16th of october every year.
World Daughter's Day is celebrated on 23rd September.
It is celebrated around the world.
Yes harmony day is celebrated all around the world
It is celebrated on 9th february...!!
The World TB Days is celebrated on 24th March.