In this exercise the student will define and expand the discussion of the "Key Questions" that are listed for each chapter in the Study Guide. You are required to define, discuss these key questions, and relate them to other important concepts and ideas in the study of environmental science and sustainable development in your own words. You must also add relevant personal opinions and make connections to sustainable practice in the Mojave Desert whenever possible and describe how/what/when technology is being used appropriately. One long or two short paragraphs (four to six sentences) with minimum 100 words

1 What are some of the scientific principles of sustainability?

2 How are our ecological footprints affecting the earth?

3. What is an environmentally sustainable society? How can environmentally sustainable societies grow economically?

4. How are our ecological footprints affecting the earth?

5. Why do we have environmental problems?

6. What are some of the scientific principles of sustainability?

7. What is the matter and how can matter change?

8. What is energy and how can it be changed?

9. What keeps us and other organisms alive?

10. What are the major components of an ecosystem?

11. What happens to energy in an ecosystem?

12. What happens to matter in an ecosystem?

13. What is biodiversity and why is it important?

14. Where do species come from?

15. How do speciation, extinction, and human activities affect biodiversity?

16. What are biomes and how have human activities affected them?

17. What are aquatic life zones and how have human activities affected them?

18. What roles do species play in ecosystems?

19. How do species interact?