○ The diagram below shows the way in which sand dunes are formed. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

The diagram shows how sand dunes are formed by wind. Overall, the process is gradual and happens in several stages when wind moves sand across dry ground and deposits it on wet sand. At the beginning, wind blows over dry ground and carries small sand particles with it. These particles move by short jumps along […]

The diagram illustrates the process by which sand dunes are formed in deserts or coastal areas. Overall, the formation of sand dunes occurs in three stages, beginning with wind-blown sand particles landing on wet sand and ending with the gradual accumulation of these particles into large sand dunes. In the first stage, sand particles from […]