1. GEOLOGIC TIME NATURAL RESOURCES TEST REVIEW

2. Write the words that come to mind… ERAS Precambrian-oxygen,stramatollites (longest 88%) Paleozoic-plants cambrian explosion Mezazoic-dinosaur and birds Cenozoic-humans elephants and horses

3. DATING ROCKS Radioactive isotopes-halflife Older rocks below younger(superpoisition) fossils

4. Layer 2 is younger than layer 5 Layer 6 is younger than layer 2 but older than 1

5. FOSSILS 3000 years old Trace fossils Resin Palentologists-study fossils Organism- water and sand

6. ELECTRICITY Coal is largest source of generating Hydropower Nuclear Natural gas

7. COAL Peat, lignite, bitumen, anthracite Fossil fuel Non renewable Cheap Air pollution, water Habitat destruction Mtn top mining Open pit mining Strip mining

8. TAR SANDS Canada Keystone Pipe lineBitumen Texas Environmental concerns Oil spill Agriculture Heat Lots of h2o and energy

9. FRACKING Pumping of water sand and bad chemicals Materials get in water, natural gas Region called-Marcellus Shale

10. MOUNTAIN TOP MINING Dest of ppl homes Coal Pollution BAD water Flooding Chemicals pressure

11. CARBON DIOXIDE Global warming Burning of fossils fuels CO2

12. NATURAL GAS Use to generate elec Cheap GHG Fracking is used to get Found with oil hydrocarbon

13. NONRENEWABLE ENERGY SOURCES Fossil fuels Tar sand, biomass(trees), oil shale

14. FOSSIL FUELS Oil gas coal non renew Remains of organic material

15. OIL 6000 products Natural gas Drilling