Which of the following is an example of industrial water use?

Hello. This question is incomplete. The full question is:

" Which of the following is an example of industrial water use?

- water are used to refine oil  - water used to flush the toilet  - water used to irrigate farms  - water used to take a bath"

Water are used to refine oil  

Explanation:

Oil refineries are generally found in coastal areas near the mouth of a river, both to take advantage of water resources and to improve transportation cost structures. In other words, when oil is refined, water is used industrially. In the United States, refineries are concentrated along the Gulf of Mexico and the West Coast, with California and Texas as the main players. But the state's heavy refining regions are arid. Providing fresh water for operations in these dry areas can be challenging, which makes water reuse a natural fit for the industry.

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nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.