How are models useful?

Answer 1

Models can be good role models by showing people you shouldn't be so self-concsious of you and your body and you are original. They can also be bad role models because if the model is caught doing something inappropriate then people may be following in his or hers footsteps.

Answer 2

A1. They can get people's attention to promote promote products such ad COVETGIRL or REVLON, other tips of models wear designs made by designers who can have those designs sold to compies who carry that designer

A2. Physical models of buildings and constructions are very useful to provide an overview of the project. Some projects are so complex (e.g. a chemical refinery) that it is only on a scale model that the complex runs of piping may be optimized.

Models are also useful for such things as motor cars, houses, and new products.

There would hardly be a large dam built anywhere in the world without first being made in model form.