The protocol amended in 1990 to protect the Ozone layer by completely phasing out CFC is :

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AKyoto Protocol

BCartagena Protocol

CStockholm Convention

DMontreal Protocol

Answer:

The original Montreal Protocol, signed in 1987, was the first step in international efforts to protect stratospheric ozone.
The London Amendment (1990) changed the ozone-depleting substances emission schedule by requiring the complete phaseout of CFCs, halons, and carbon tetrachloride by 2000 in developed countries, and by 2010 in developing countries.
Methyl chloroform was also added to the list of controlled ozone-depleting substances, with phaseout in developed countries targeted in 2005, and in 2015 for developing countries.

Related Questions:

Consider the following statements regarding effective disaster management practices:

Effective disaster management primarily relies on international aid and does not require domestic governmental coordination.
The Disaster Management Cycle offers a new and holistic perspective on addressing various types of disasters.
Partnership among Central, State, and Local levels of government is crucial for ensuring the protection of people.

Which of the following statements accurately describe the partnership aspect of effective disaster management?

Effective disaster management primarily relies on the Central government's initiatives with minimal local involvement.
Collaboration among Central, State, and Local levels of government is crucial for effective disaster management.
The aim of this collaboration is to ensure the protection of people through proper measures.
The partnership focuses exclusively on immediate response and relief, not preparedness or mitigation.