Question
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 codes given below.
(a) 1 and 2 only
(b) 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Answer:
D
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Explanation:
The potential sites for carbon sequestration in the context of mitigating global warming due to anthropogenic emissions of carbon dioxide are as follows:
Abandoned and uneconomic coal seams: Coal seams that are no longer economically viable for extraction can be used for carbon sequestration. The carbon dioxide can be injected into these seams and stored securely underground.
Depleted oil and gas reservoirs: Oil and gas reservoirs that have been depleted of their resources can serve as potential sites for carbon sequestration. The carbon dioxide can be injected into these reservoirs, which have natural trapping mechanisms, to store the CO2 underground.
Subterranean deep saline formations: Deep saline formations are underground geological formations that contain salty water. These formations can be utilized for carbon sequestration by injecting carbon dioxide into the saline aquifers.
Based on the given options, the correct answer would be:
(d) 1, 2, and 3