Which one of the following Protocols was signed in the year 1987 to reduce the production and use of ozone-depleting substances?
(a) Kyoto Protocol
(b) Montreal Protocol
(c) Nagoya Protocol
(d) Cartagena Protocol
Ans:(b) Montreal Protocol
(a) Kyoto Protocol
(b) Montreal Protocol
(c) Nagoya Protocol
(d) Cartagena Protocol
Ans:(b) Montreal Protocol