Final answer:
The term 'aggradational' does not describe a type of dune but rather the process of growth of geographical features such as beaches and dunes.
Step-by-step explanation:
All of the following are types of dunes EXCEPT: a. Barchan. b. Aggradational. c. Parabolic. d. Transverse. e. Longitudinal. The correct answer to this question is b. Aggradational. While barchan, parabolic, transverse, and longitudinal are all specific types of subaerial dunes that are formed by the action of wind on sand, aggradational is not a type of dune. Instead, aggradation is a term used to describe the growth of morphological features, such as beach dunes, sand banks, and salt marshes, either vertically or horizontally.