1. It is a Convention for the protection of the Ozone layer.
2. It functions under the aegis of the Inter-Governmental Panel on Climate Change(IPCC).

How many of the above statements is/are correct?

1. Coastal revegetation through seagrass, mangroves and saltmarsh  
2. Adding alkaline materials such as carbonate or silicate rock
3. Iron fertilisation

1. Cryogenics
2. Household and Industrial refrigerators
3. Hydrogen liquefiers
4. Heat pumps 

How many of the given above is/are correct?

1. All HFCs are human-made.
2. HFCs deplete the ozone layer of the stratosphere. 
3. HFCs are useful in insulating foams and aerosol propellants, as solvents, and for fire protection.