Final answer:
In relation to the period just before and after 1900, the term 'decorative' refers to the ornate and complex qualities present in various forms of art and design. An example of an architect who applied these principles is Charles Rennie Mackintosh.
Step-by-step explanation:
In relation to the period just before and after 1900, the term 'decorative' refers to the ornate and complex qualities present in various forms of art and design, including architecture, furniture, and decorative objects. It is often associated with the Art Nouveau movement, which embraced the idea that art should be part of ordinary life. 'Ornamental', on the other hand, typically refers to the decorative elements that are added to a design for embellishment or aesthetic purposes.
An example of an architect who applied the principles of 'decorative' and 'ornamental' in their work during this period is Charles Rennie Mackintosh. Mackintosh, a Scottish architect and designer, incorporated intricate decorative motifs and innovative use of materials in his buildings, such as the Glasgow School of Art.