5Dec19 SS Q23
0. Montreal protocol was signed in order to address which of the following environmental issues?
- Option : B
- Explanation : The Montreal Protocol on Substances that Deplete the Ozone Layer (the Montreal Protocol) is an international agreement made in 1987. It was designed to stop the production and import of ozone depleting substances and reduce their concentration in the atmosphere to help protect the earth's ozone layer. Ozone mostly about 90% found in a layer that begins between 10 and 17 kilometers above the Earth's surface and extends up to about 50 kilometers. This region of the atmosphere is called the stratosphere.
