1. Environmental Resources and Problems

2. Renewable Resources can regenerate & replaceable ex. water, wind, trees

4. Nonrenewable Resource cannot be replenished by natural processes ex. fossil fuels, coal, gas

6. (Problems) Smog smog – mixture of chemicals in the air (haze found in large cities) smoke from cars and factories carry nitrogen and sulfur that mix with air

8. (Problems) Acid rain acid rain –acid from burning fossil fuels (Carbon dioxide and sulfur) mix with clouds. - changes ph of soil and lakes -erodes buildings and statues

10. (Problems) Eutrophication -eutrophication- adding extra nutrients to the ecosystem (fertilizer) -gets in water and causes extra algae to grow -bacteria decompose dead algae and use up the oxygen -fish in the water to die due to low oxygen.

12. Threats to Biodiversity -altering habitats, over-hunting, adding toxins to food web, introducing foreign species Extinction – species disappears Endangered species – close to extinction