Human+Interference+JO

Chapter 23 Human Interference (WIki) Last Unit...Life with us.

Human Interference with the water cycle (p.499) 1. What are the three ways humans disrupt the natural water cycle? 2. What is groundwater mining and what is the danger of this process? 3. Why is it possible to run out of freshwater, a renewable resource?

Human Interference with the carbon cycle (p.501) 1. How are humans increasing the amount of carbon dioxide being deposited in the atomosphere on top of "natural" sources? 2. What are the greenhouse gases and what are the human causes of these gases? 3. Why are these gases called greenhouse gases? 4. What are some possible dangers of global warming?

Human Interference with the Ozone Shield (p.506) 1. What is the ozone shield and what chemical reaction produces ozone? 2. What are ozone holes? 3. Why are ozone holes dangerous to humans? 4. What human pollution destroys ozone molecules? 5. What are commons sources of chlorine pollution?

Human Interference and the Arctic (p. 507) 1. What does ANWR stand for and what is it? 2. Why is ANWR the source of political debate? 3. What are the benefits of drilling for oil in ANWR? 4. What are the risks of drilling for oil in ANWR?