Download Exam 1 Study Guide - World of Water | SWS 2007 and more Study notes Environmental Science in PDF only on Docsity! Study Guide Exam I World of Water 1. Know the 2 largest water users in the typical home. 2. Which of the 2 is the largest? 3. Know the percentages of water used globally for domestic, industrial and irrigation use. 4. Know how many gallons of water are required to produce a single ¼ pound hamburger. 5. Know the average daily and annual household water use. 6. Know who said “the seeds of everything have a moist nature.” 7. Know the dimensions of the earth and the volume of water on earth. 8. Know the percentage of total earth water that is readily available freshwater, and where most of the fresh water is found. 9. Know the accepted age of the earth. 10. Water appeared between 3.5 and 4.1 billion years ago. Know the evidence for each date. 11. Know the 3 potential sources of earth’s water discussed in class. 12. Know the percentage of volcanic gas that is water vapor. 13. What is the largest known asteroid? What is the significance of its composition? 14. Know how deuterium is different from ordinary hydrogen and why it’s important in terms of the origins of earth’s water. 15. Know the % of water in living systems. 16. Know the longest period anyone has ever survived without water. 17. Know 3 reasons why water is an ideal medium for life processes. 18. The earliest organisms on earth were anaerobic and autotrophic. Understand the meanings of anaerobic and autotrophic. 19. Know the difference between photo autotrophs and chemoautotrophs. Which were the first organisms? What is the evidence for the first organisms? How long ago did they appear? 20. Know the primary importance of the appearance of Cyanobacteria on earth. 21. What is a stromatolite? Why are they important to the earth’s atmosphere? 22. Understand why massive production of oxygen in earth’s oceans did not lead to an immediate increase in atmospheric oxygen. 23. Know the time period during which the first land plants and animal arose, and the development that allowed for colonization of land on earth. 24. Know when the Carboniferous was and why it is important. 25. Know roughly when the first homo sapiens appeared. 26. What innovation in pre-human development does “Lucy” demonstrate? What is her age? 27. Understand the fundamentals of the “savannah hypothesis”. 28. Know the first condition necessary to the settling of humans. 29. Know the dates of the Paleolithic and the Neolithic. Know also the fundamental differences between the two periods. 30. Know the human development that caused the Neolithic revolution and its approximate date. 31. Know the climatic change that apparently triggered the Neolithic and subsequent development of civilization. 32. Know the amount of time between the first tool users and the development of agriculture. 33. Know the freezing and boiling points of water. 34. Know the total number of electrons in hydrogen and oxygen and the number of electrons in the outer shell of oxygen. 35. Know how hydrogen is bonded to oxygen in a single water molecule and the name of the bond.
