| A | B |
|---|
| where we used to get energy from | wood, wind, water |
| where we now get energy from | oil, natural gas, coal |
| type of resource wood, wind, and water is | renewable |
| type of resource coal, gas, etc. is | nonrenewable |
| although our production of oil is decreasing, our consumption is doing this | increasing |
| where fossil fuels come from | ferns and other ancient plants |
| what causes plants to become fossil fuels | decay, heat, pressure |
| the 4 types of coal | lignite, subbituminous, bituminous, anthracite |
| the hardest type of coal | anthracite |
| the softest of the coals | lignite |
| coal with highest heat content | anthracite |
| our most abundant fossil fuel | coal |
| why anthracite is used in heating homes | high heat value and cleaner burning |
| two types of coal mining | surface and deep mining |
| safety concerns with mining coal | cave ins, explosions, black lung disease |
| environmental concerns with coal mining | subsidence, strip mining leaves land barren and scarred, water pollution, air pollution |
| this cleaner burning fuel produces more energy than coal or oil | natural gas |
| almost half of each barrel of oil is used for the production of this | gasoline |
| What is ANWR | arctic national wildlife refuge |
| chemically changed fossil or organic fuels | synthetic fules (synfuels) |
| problems with synfuels | expensive, use lots of water, can cause air pollution, dirty to make, uses food for fuel |
| advantages of synfuels | cheaper than fossil fuels, burn cleaner, more readily available |
