The diagram illustrates the process of recycling of plastic bottles.
Overall, it has 9 stages, man-made, cyclical process. It begins with transportation of materials, which are putted into a trash container and ending with finally result is a plastic being produced again.
First of all, the truck picks up the container with garbage and delivers bottles to the recycling center, where sorting employer divides plastics into two containers, useless and useful bottles. After that, useful bottles are compressed into blocks to be crushed between two wheels into small pieces.
Following that, small pieces are cleaned in water before they go through a production machine to take plastic pellets and deposit them into the clear container. From this, the pellets are heated during some time before they are formed row material and then produced to different types of products, that can be used in the manufacture, ranging from clothes to containers and pencils. These items are themselves recyclable and the process begins again.