Montreal Protocol.
Montreal Prototcol focuses on the ozone layer. It aims at protecting it.
September 16 is designated by the United Nations General Assembly as the International Day for the Preservation of the Ozone Layer.
Montreal protocol was signed. It aims at protecting ozone layer.
Montreal Protocol
Ozone layer contains ozone in it. Therefore, it is named so.
Montreal Prototcol focuses on the ozone layer. It aims at protecting it.
Montreal Protocol focuses on ozone layer. It aims at protecting the ozone for future generations.
16 September is the international day for ozone preservation. it is also called ozone day.
Montreal protocol is international treaty. It helps the ozone layer against depletion.
September 16 is designated by the United Nations General Assembly as the International Day for the Preservation of the Ozone Layer.
16 September is the day. It is also called Ozone day.
Montreal protocol was signed. It aims at protecting ozone layer.
It's an international agreement to protect the ozone layer.
Montreal Protocol
Ozone layer contains ozone in it. Therefore, it is named so.
16 September is celebrated as ozone day. It marks the beginning as Montreal Protocol.
Montreal Protocol is the protocol. It was signed in 1988.