Long run aspects of environmental protection and of the use of resources are analyzed within a planning model. To this end fundamental concepts of thermodynamics are explained in a simple manner. The relationships between entropy, energy necessary for the extraction of a resource and the concentration of the resource is employed to establish a connection between the economic system and the environment.
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.