What is one benefit of using treated wastewater in irrigation?

Using treated wastewater in irrigation presents several advantages, particularly in its ability to reduce the use of freshwater resources. This practice is increasingly essential, especially in regions where water scarcity is a concern. By utilizing treated wastewater, agricultural and landscape irrigation can be sustained without placing additional strain on freshwater supplies.

This approach not only conserves vital drinking water resources but also provides an alternative source of water for irrigation purposes. This is particularly beneficial in drought-prone areas or regions experiencing prolonged low precipitation, where reliance solely on natural freshwater sources may not be feasible. The treatment of wastewater to a safe standard allows it to be recycled for beneficial uses, ensuring that even non-potable water can play a significant role in sustainable water management practices.

The other options don't correctly convey the advantages of using treated wastewater in irrigation. While the potential for excess water use can be a factor in some scenarios, it doesn't highlight a primary benefit. Enhanced soil salinity is typically considered a negative consequence, and increasing irrigation costs contradicts the financial benefits often associated with using treated wastewater, which can lower costs by reducing the need for traditional water sources.