Final answer:
The Eloi and Morlocks in H.G. Wells' 'The Time Machine' are flat characters because they represent thematic ideas and do not exhibit the complex personalities or growth that would make them round characters.
Step-by-step explanation:
The Eloi and the Morlocks in H.G. Wells' The Time Machine can be classified according to E.M. Forster's distinction between characters as either flat or round. Flat characters are those who are simple, one-dimensional, and typically embody a single idea or quality. They can be quickly summarized and do not undergo substantial change or development throughout the story. Round characters, on the other hand, exhibit a complex personality, are capable of growth and change, and often surprise the reader in a believable way, possessing the depth akin to real people.
In the novel, the Eloi and the Morlocks exhibit characteristics that are largely representative of the thematic ideas Wells explores, such as the consequences of socio-economic divisions and evolution. These groups can be seen as flat characters since they serve more as symbols for these ideas rather than being fully fleshed-out individuals with complex personalities who undergo significant personal development or change throughout the novel.