Shape is not an element of interior design. The elements of interior design are color, texture, pattern, and line.

The primary purpose of color in interior design is to create a mood or atmosphere. Color can be used to create a sense of warmth, coolness, energy, or relaxation.

Auditory texture is not a type of texture in interior design. The types of texture in interior design are visual texture, tactile texture, and olfactory texture.

Pattern is a repeating design, while motif is a single design element. A motif can be used to create a pattern, but a pattern does not always have a motif.

Rhythm is not a principle of interior design. The principles of interior design are balance, emphasis, and unity.

The purpose of balance in interior design is to create a sense of visual equilibrium. Balance can be achieved by using equal amounts of visual weight on either side of a room, or by using different elements to create a sense of visual interest.

Unity is not a type of emphasis in interior design. The types of emphasis in interior design are focal point, contrast, and repetition.

The purpose of unity in interior design is to create a sense of visual cohesion. Unity can be achieved by using similar colors, textures, patterns, and shapes throughout a room.

Eclectic is not a type of interior design style. The types of interior design style are traditional, contemporary, and mid-century modern.

The primary characteristic of traditional interior design style is the use of symmetry and balance. Traditional interiors are often characterized by formal arrangements of furniture and accessories.

Use of natural materials is not a characteristic of contemporary interior design style. Contemporary interiors are often characterized by the use of clean lines, simple forms, bold colors, and open floor plans.

The primary characteristic of mid-century modern interior design style is the use of organic shapes and curves. Mid-century modern interiors are often characterized by the use of rounded furniture, curved walls, and abstract patterns.

Size is not a factor to consider when choosing furniture for an interior design project. The factors to consider when choosing furniture are function, style, and comfort.

The primary purpose of lighting in interior design is to illuminate a space. Lighting can also be used to create a mood or atmosphere, highlight architectural features, and add visual interest.

Decorative lighting is not a type of lighting in interior design. The types of lighting in interior design are ambient lighting, task lighting, and accent lighting.