The disadvantage of natural gas has been the contaminating groundwater due to fracking. Thus, option D is correct.
Natural gas has been the stored fossil energy that has been found buried deep inside the earth. The gas has consisted of a varying quantity of compounds with a maximum proportion of methane.
Natural gas has been nonrenewable, causing pollution with the burning. The release of greenhouse gases with the burning of natural gas results in affecting the environment.
Although there has been the presence of various extraction methods, natural gas results in contaminating groundwater due to fracking. Thus, option D is correct.
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