material selection

(g) The way in which the selection of materials or components is influenced by a range of factors such as functional, aesthetic, environmental, availability, cost, social, cultural and ethical

Cliciwch isod i weld yn Google Slides neu "edit" os oes gynych yr hawl:

https://docs.google.com/presentation/d/1m9LOVHs9MfevqSuaRwbt9U0M2N3C7fVLfQspnB34fxY/edit#slide=id.p