The diagram below shows how a hot balloon works. Overall, it consists of several key components, including the envelope, the basket, and the burner system, which work together to facilitate its functionality.
The three pie charts illustrate how the annual spending of a particular UK school changed in 1981, 1991, and 2001. The data is divided into five categories: teachers' salaries, other workers' salaries, resources (e.g., b
The bar chart presents the number of research students, divided by gender, who pursue different subjects in 2005. These subjects included linguistics, psychology, natural sciences, engineering, programming and mathematic
The bar chart provides key information on the percentage of households with cars in a European country between 1971 and 2001. The units are measured in percentages.