You should spend about 20 minutes on this task. The diagram below shows how salt is removed from seawater to make it drinkable. Summarize the information by selecting and reporting the main features and make comparisons where relevant. Write at least 150 words.

The picture illustrates the process of desalination of seawater in order to produce fresh water. Overall, the process consists of several stages. They include pre-treatment, the filtration of seawater through a membrane and the following chemical treatment, meanwhile salt returns to the sea. Firstly, through the intake salt water is transferred from the sea to […]