Salt water. is mainly used in mining, is only found in oceans, covers less than 50 % of the earth or can be desalinated and used for irrigation

Option D, can be desalinated and used for irrigation

Explanation:

In all the engineering processes including mining distilled water is used. thus option A is not correct.

Salt water is found in both oceans and seas and they form up to 75% of the total water available on planet earth. Thus both option B and C are ruled out.

With the technological advancement and development of new ways of desalinating salty water, it is now possible to use desalinated salty water in irrigation. Thus option D is correct.

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