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Chapter 6, Humans in the Biosphere

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Chapter test  .
Class Notes

A. Read pages 139-145 and answer Questions pages 163-164: 1-3, 12, 13.  Due .
Terms & Concepts: Appreciate that the effects of human activity on the environment is not a new problem. Use the history of Hawaii as an example of how humans have deliberately and unwittingly altered ecosystems, at times causing widespread extinction of plants and animals. Understand that this loss also includes the "services" provided to societies by ecosystems. Be able to describe the stages that society often evolves through including the hunting and gathering stage, agriculture, and our urban/industrial society. Be able to discuss how each of these stages of development interacted with the biosphere from both positive and negative points of view.Appreciate the significant changes our agricultural technologies have moved through to the present day monoculture. Understand new developments in agriculture in particular the so called "green" revolution and its reliance on modern technologies. Finally, understand the advantages and disadvantages of living in large industrial and urban settings. Be able to discuss the benefits to humans of urban life and the dangers our cities pose for the biosphere.

B. Read pages 144-149 and answer Questions pages 163-164: 4-5, 14-16, 25. Due .
Terms & Concepts: Distinguish between renewable and nonrenewable resources and be able to give examples of each. Understand how these terms are related to the concept of sustainable development. Be able to describe why soil is an important renewable resource and explain how human activity can lead to erosion and desertification that destroys our ability to sustain this resource. Be aware of the over harvesting of resources in our forest and fisheries that lead to deforestation and overfishing. Be able to interpret graphs similar to those on page 147. Use the diagram on page 148 to understand the origin of smog and acid rain and the consequences of air pollution.

C. Read pages 150-156 and answer Questions pages 163-164: 6-9, 17-18, 28. Due .
Terms & Concepts:  Understand the biodiversity in its broadest sense and its relationship to ecosystem, species, and genetic diversity. Appreciate the value associated with these various forms of diversity to humans. Be able to discuss specific examples of how we have benefited from biodiversity. Be able to discuss examples of how human activity has put biodiversity at risk. Appreciate the consequences of habitat fragmentation, the over demand for wildlife products, the biological magnification, and effects of invasive species on biodiversity and their results including extinction and endangered species. Be able to describe various efforts to protect our environment from these threats to biodiversity. Be able to interpret the map of biological hot spots on page 156

D. Read
pages 157-160 Questions pages 163-164: 10-11, 19-20, 24.  Due .
Terms & Concepts:  Be familiar with the history and current research efforts that address the threat of ozone to the atmosphere and  the factors that are changing the world climate. Be able to describe the evidence for changes caused by depletion of the ozone layer and global warming and efforts to reverse these problems. 


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