Humber/Ontario Real Estate Course 4 Exam Practice

Owner Gupta describes a system used to remove solids and minerals from well water using a semi-permeable membrane and storage tank. What is this process known as?

1. Carbon filtration.

2. Reverse osmosis.

3. Chlorination injection.

4. Aquifer cleansing.

5. Distillation.

6. Ion exchange.

The correct answer is: Reverse osmosis.

Reverse osmosis is the correct answer because it involves a process where water is forced through a semi-permeable membrane to remove impurities such as solids and minerals. This process is widely used to purify water, especially well water, by removing contaminants to make it safe for drinking. The other options are incorrect: - Option A, carbon filtration, uses activated carbon to remove impurities but does not involve a semi-permeable membrane. - Option C, chlorination injection, is the process of adding chlorine to water to disinfect it, not to remove solids and minerals. - Option D, aquifer cleansing, refers to cleaning or restoring an underground water source, not the specific process described in the question. - Option E, distillation, involves heating water to create steam, leaving impurities behind, and then condensing the steam to obtain purified water, which is different from the process in the question. - Option F, ion exchange, involves exchanging ions in water with ions attached to a medium, typically resin, to remove certain contaminants, which is not the same as the process of forcing water through a semi-permeable membrane as in reverse osmosis.