Montreal protocol aims at:

Options

A. reducing of ozone depleting substances
B. biodiversity conservation
C. control of water pollution
D. control of `CO_(2)`

Answer

A

Explanation

In August 1989, 44 countries and EEC ratified the Montreal Protocol, which provides a mechanism to review the efficiency of control measures. They also agreed to phase out the halogens and to control and reduce other Ozone Depleting Substances (ODSs). IN a policy statement called Helsinki Declaration, the attending nations agreed to phase out the production and consumption of controlled CFCs as soon as possible but not later than the year 2007.