8) The Once-ler learned that he had made a serious mistake. What, in your opinion, was his mistake? What could he have done differently (How could the Once-ler have managed his company to protect natural resources and not run out of trees)? 9) Explain, in your own words, what the Once-ler says must happen for the Lorax and his animals to return. 10) Can you think of a real-life example of how man-made pollution affected a real ecosystem, its abiotics (eg: temperature, water quality, air quality, etc.) or its habitat? Explain. 11) The use of technology requires the use of natural resources. The use of natural resources always has an effect on the environment. How did the production of Thneeds affect the Truffula trees, a key biotic natural resource? 12) Threatened and endangered species are those plant and animal populations threatened by or becoming extinct. Often, this is a result of human activity. Can you name the threatened or endangered species in the story and describe why they faced this condition? 13) Certain animals depended on Truffula trees. Name the animals. Explain why these animals needed Truffula trees. 14) Often, technological production creates, "byproducts". For example, a byproduct of sawing wood is sawdust. Sometimes the byproducts of technology are unwanted or dangerous and are pollutants in the environment. Sometimes byproducts are useful. Name two byproducts that resulted from making Thneeds. 1: 2: 15) What does the Once-ler