The recycled water were indirectly used when the water blends with the supplies or source sits a while in an area to be stored, it can be a man-made or a natural. it can be in an underground water basins or a surface water reservoir.
The answer is a : the related words were more closely related to the concepts in your textbook
It is c because entrepreneurs start businesses
A. It has to do more with the society and the specialist can help you in cases of a wide variety of community issues.