Which of the following describes a method of water treatment?

Reverse osmosis is a significant method of water treatment that utilizes a semipermeable membrane to remove a wide range of dissolved solids and contaminants from water. This process works by applying pressure to force water through the membrane, which allows only the water molecules to pass through while rejecting larger particles, ions, and dissolved substances. As a result, reverse osmosis effectively purifies water, making it safe for consumption and use.

This technique is particularly valuable in applications where high levels of dissolved salts and contaminants are present, such as in desalination processes or when treating industrial wastewater. The effectiveness of reverse osmosis in providing clean and safe water has made it a widely adopted technology for both residential and commercial water treatment systems.

Other methods mentioned, such as filtration using cloth, heating, or adding acid, while effective in specific situations, do not offer the same comprehensive removal of dissolved solids and contaminants as reverse osmosis. Each of these methods has its own application, but they may not achieve the desired level of purification for all water treatment needs.