2. What best explains the cradle to cradle model?
(a) The natural world is the only place where something old can make something new.
(b) Even when things die they create nutrients for a new life.
(c) Even if things die they can always be replaced with new products.
(d) The world has enough resources to support a extremely high birth rate.

3. How can leather be safely tanned?
(a) With UV light tanners.
(b) With plastic resins.
(c) With wind-dry technology.
(d) With vegetable tanners.

4. What do the authors mean by a throwaway society?
(a) Government sponsors companies that reduce waste production.
(b) Industry designs products to be recycled.
(c) Volunteers that pick up waste along the highways.
(d) Consumers are accustomed to throwing out the old and buying new.

5. In general, the authors believe that a roof should:
(a) Work with nature.
(b) Contribute to energy consumption.
(c) Function as an insulator regardless of the materials used.
(d) Repel nature.

6. Which is an example of a product that is difficult to recycle?
(a) Lunch bags.
(b) Carpet.
(c) Glass baby food jars.
(d) Plastic bottles.

7. What can we do with materials that cannot be safely recycled?
(a) Use them for other products.
(b) Recycle them, even though they release toxic chemicals.
(c) Save them until we have the technology to recycle them safely.
(d) Break them down into small pieces and dispose of them properly.

8. What does manufacturing need to be based on?
(a) Local water flow and energy sources.
(b) Using cheaper petroleum products.
(c) Energy from larger power plants.
(d) Ocean water and recycling systems.

9. What is another reason to build using local materials?
(a) It stops exportation of local goods.
(b) It encourages devolution.
(c) It increases profits for importers.
(d) It prevents invasive, non-native species from entering the area.

10. What do the authors design for Herman Miller?
(a) A furniture factory.
(b) Suburban shopping mall.
(c) Athletic shoes.
(d) Downtown lofts.

11. How has leather been tanned in the last forty years?
(a) With salt tanners.
(b) With vegetable tanners.
(c) With chromium tanners.
(d) With plastic resins.

12. What is meant by an "industrial re-evolution"?
(a) Design products to reflect the diversity in the natural world.
(b) Design products to encourage more industrialization.
(c) Design products to have a superior technology that does not depend on natural resources.
(d) Design products that to do not depend on the environment or its natural evolution.

13. Which statement most accurately reflects the authors' ideas?
(a) Our products are best when consumers can afford them.
(b) Our products and processes are best when they most resemble the natural world.
(c) Our industry is best when it uses more simple designs on a larger scale.
(d) Our industry is best when we accommodate worker equity.

14. Which is a by-product of power plants that could be used in homes or businesses?
(a) Hot water.
(b) Salt.
(c) Carbon dioxide.
(d) Steam.

15. What threatens the soil the most?
(a) Insects.
(b) Seed germination.
(c) Plowing and turning of nutrients.
(d) Accumulation of toxic chemicals.