Question

World ozone day is celebrated on _____
A. 16th September
B. 5th June
C. 22nd April
D. 21st April

Answer 1

Hint: Ozone layer plays an important role in protecting the Earth by limiting the harmful ultraviolet radiation of the sun and is considered to be a fragile shield of gas which helps to preserve human health and ecosystems on the planet.

Complete answer:
The United Nations General Assembly proclaimed in 1994 that 16th September of every year is to be celebrated as World Ozone Day. This day is also considered as the International Day for the Protection and Preservation of the Ozone Layer. The date, 16th of September is observed to commemorate the date on which the Montreal Protocol was signed in order to cut down 99% of all Ozone depleting substance for the protection of Ozone Layer.
 On the first day of Stolkholm Conference on Human Environment in the year 1972, the UN General Assembly proclaimed that 5th June of every year is to be observed as World Environment Day in order to encourage worldwide awareness towards the protection and conservation of our environment.
 Earth Day is an international event that is celebrated annually on 22nd April all around the world which marks the birth or a beginning of modern environment movement in 1970. This day aims to raise environmental awareness and to demonstrate support over the protection of Earth and its environment. This year 2020 marks the 50th anniversary of its celebration which focuses on the action for climate change.
 The Government of India celebrates an occasion for the civil servants on 21st of April every year as Civil Services Day to rededicate themselves on their lives to the cause of citizens and encourage their excellence in work towards the public services.

Hence, the correct answer is option (A).

Note: The hole in Ozone layer which is caused by ozone-depleting gases (ODSs) are due to the usage of aerosols and cooling, such as refrigerators and air-conditioners. This condition was life-threatening to increase the cases of skin cancer and cataracts, and eventually damage the crops, plants, and ecosystems.
For the Protection of the Ozone Layer, Vienna Convention was adopted in 1985 by the world’s governments under which Montreal Protocol was signed in 1987 and became the first global environmental treaty.