The diagram below shows a simple device for changing sea water to drinking water. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The diagram shows a way in which sea water can be converted to drinking water using a simple device called a floating solar still. This device consists of a clear plastic dome, a rubber tube and a smaller container called a distilled water collector. First, the larger plastic container is placed on the sea water, […]