Biology chapter 6 review

Topics: Biodiversity, Ecology, Sustainability Pages: 2 (301 words) Published: December 8, 2013

Chapter 6 Review:

HUMAN ACTIVITIES THAT AFFECT THE BIOSPHERE
- Humans affect regional and global environments through agriculture, development, and industry in ways that have an impact on the quality of Earth’s natural resources, including soil, water, and the atmosphere.

2. RELATIONSHIP BETWEEN RESOURCE USE & SUSTAINABLE DEVELOPMENT
- Sustainable development provides for human needs while preserving the ecosystems that produce natural resources.
- renewable resources • water, wind, etc.
- non-renewable resources • oil, coal, etc.

3. HOW HUMAN ACTIVITIES AFFECT SOIL & LAND
- Farming can lead to pollution
- Agriculture and Forestry help sustain soil

4. HOW HUMAN ACTIVITIES AFFECT WATER RESOURCES
- industrial and agricultural chemicals
- residential sewage
- non-point sources

5. HOW HUMAN ACTIVITIES AFFECT AIR RESOURCES
- smog • big cities
- acid rain • burning of fossil fuels
- greenhouse gases • raising cattle, farming rice, burning forests
- particulates • Diesel engines

6. BIODIVERSITY
- The total of all the genetically based variation in all organisms in the biosphere.
- Biodiversity’s benefits to society include contributions to medicine and agriculture, and the provision of ecosystem goods and services.

7. CURRENT THREATS TO BIODIVERSITY
- Humans reduce biodiversity by altering habitats, hunting, introducing invasive species, releasing pollution into food webs, and contributing to climate change.

8. HOW BIODIVERSITY CAN BE PRESERVED
- To conserve biodiversity, we must protect individual species, preserve habitats and ecosystems, and make certain that human neighbors of protected areas benefit from participating in conservation efforts.

9. CONCEPT OF ECOLOGICAL FOOTPRINT
- describes the total area of functioning land and water ecosystems needed both to provide the resources an individual or population uses and to absorb and make harmless the wastes that individual or population generates...
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