how is the kyoto protocol enforced?\na. by monitoring the ozone hole\nb. by using carbon credits and…

Brief Explanations:

The Kyoto Protocol uses a system of carbon credits and debits to enforce emissions - reduction commitments. Countries that reduce their emissions below their targets can earn carbon credits, which can be sold to countries that are unable to meet their targets. Monitoring the ozone hole, banning aerosols, and banning CFCs are related to the Montreal Protocol for ozone - layer protection, not the Kyoto Protocol for greenhouse - gas emissions reduction.

Answer:

B. By using carbon credits and debits