Question

the montreal protocol was an international treaty designed to protect the ozone layer by phasing out the production of substances believed to be responsible for ozone depletion. how many nations signed this protocol? 194 10

Explanation:

The Montreal Protocol is an international environmental - related treaty. As of now, 197 countries and the European Union have ratified it, which is very close to 194 considering the common count of individual nations. The number 10 is far from the actual number of signatories.

Answer:

194