1. Humans in the Biosphere
Chapter 6
Unit 2

2. Renewable and Nonrenewable
Can regenerate if they are alive or can be replenished if nonliving
Not necessary unlimited
Cannot be replenished by natural processes
When depleted they are gone forever or it will take thousands of years before can be replenished

4. Sustainable Development
A way of using natural resources without depleting them

5. Land Resources
Soil Erosion: the wearing away of surface soil by water and wind.
Desertification: turning a once productive area into a desert

6. Forest Resources Deforestation: loss of forests
Effect: can lead to severe erosion

7. Fishery Resources
Overfishing: harvesting fish faster than they can be replaced or reproduced
Aquaculture: the raising of aquatic animals for human consumption

8. Air Resources
Smog: a mixture of chemicals that occurs as a gray-brown haze
Pollutant: harmful material that can enter the biosphere through the land, air, or water