Energy and Matter: Natural Resources SCI 7726

What is a natural resource?

Renewable/ Nonrenewable Questions from activities?

I. Renewable resources A. Capable of being regenerated B. Must be used sustainably- they DO have limits C. Vital natural resources?

II. Resource management

B. example: freshwater

III. Nonrenewable resources: fossil fuels A. Sources of energy

B. Where do fossil fuels come from?

C. Distribution of fossil fuels

D. Need energy to get energy EROI- energy returned on investment EROI= energy returned/ energy invested 40’s: 100 to 1 70’s: 30:1 Now: 5: 1

D. Coal

E. Natural gas 1. Mostly methane: CH 4 a. Biogenic b. thermogenic

F. Oil

IV. Alternatives A. Nuclear B. Biomass C. Hydroelectric D. Solar E. Wind F. Geothermal