Answer:
Answer is E, its use is becoming less efficient.
Step-by-step explanation:
Water has been described as the essential substance. This is because all organisms can't survive without water. And it is very crucial for organisms especially human beings in their daily activities.
The use of water in any aspect always yield the required or expected result, when use accordingly. It has never and will never be less efficient.
In industries, water is used to carry out so many activities, like cooling of metals, generating power and so on.