the diagram below shows how one type of coal is used to product electricity. summarize the information by selecting and reporting the main features, and make comparisons where relevant.

The pie chart illustrates the percentage of five kinds of books such as adult fiction,children’s fiction,biography,travel and others which sold by a bookseller between 1972 and 2012. Overall,adult fiction increased significantly in 2012,while travel experienced a steady decline over the period.By this time children’s fiction remained stable at about 25%. In 1972 the biography’s feature […]