The diagram below shows the structure of a basic rocket engine. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The bar chart illustrates the percentage of men and women in different age groups who were continuing physical activity in Australia in 2010. Overall, it can be observed that the men and women in different age groups who engaged in regular physical activity such as 15 to 24, 25 to 34, 35 to 44, 45 […]