Define needs wants and demand,describe how they are different from each other.

Needs are things that assist us survive in most environments. They are the tools that assist us to achieve a goal , or an existence - Wants are those things that we could perhaps do without , but our yearning desire to include them into ourselves & tools , make it a want. Demands are those things that we must have & can be categorised as a very important need - Not having what our tool box demands we should have in order to be successful ,could affect the final product, that we produce. Usually these are "cant do without " under any circumstance , in order to be the best.