22) H

1 – Wrong
Amount of water available cannot be correlated with the amount of water consumed. The evidence is shown in the case of Texas in the paragraph ‘Water used’. Even though the state was going through drought, its consumption level was the greatest.

2 – Wrong
Even if technology to extract shale gas has developed, it does not provide evidence for the variability seen in water consumption across the states.

3 – Wrong
The questions asks for the explanation for the wide variation in water consumption per well. It does not matter how many wells each of the states have dug.

All of the statements are wrong. Hence H is the answer.

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