11. In the context of mitigating the impending global warming due to anthropogenic emissions of carbon dioxide, which of the following can be the potential sites for carbon sequestration? 

1. Abandoned and uneconomic coal seams

2. Depleted oil and gas reservoirs

3. Subterranean deep saline formations

 

Select the correct answer using the code given below: 

1. 1 and 2 only

2. 3 only

3. 1 and 3 only

4. 1, 2 and 3

Correct Answer :