Energy EOG Review

Law of Conservation of Energy  Energy can not be created nor destroyed it may appear to be lost, but it is released as heat.

Non-Renewable Energy  Can not be replaced as fast as it is used.

Oil As An Energy Source Oil As An Energy Source Advantages  Considered easy to handle, store and transport.  Easier to extract from the ground than coal and more cost effective to transport. Disadvantages  Releases carbon gases into the atmosphere when burned.  Drilling may affect ocean and terrestrial habitats. The threat of oil spills exists.

 Dangers include explosions and oil spills.  Ocean habitats can be disturbed from exploration and extraction.  Natural gas is still a non renewable resource. Disadvantages  Produces large amounts of energy with less air pollutants.  Easy to transport.  Less time and money to build a gas plant than for coal plants. Advantages Natural Gas As An Energy Source

Nuclear Power As An Energy Source Advantages  Does not pollute the air or produce greenhouse gases.  Can be built in urban or rural areas, and does not radically alter the environment around them. Disadvantages  Used rods and Uranium pellets must be stored.  The cold water used to cool the rods is emptied in to river, could cause fish kills if it’s not cooled off adequately.

Renewable Energy  Replaced as quickly as it is used.

Hydroelectric Energy Advantages  Renewable  Produces no pollution.  ation.com/player/view/ assetGuid/3F2D EE8-4CD6-A2DF- C B ation.com/player/view/ assetGuid/3F2D EE8-4CD6-A2DF- C B Disadvantages  Flooding land to build reservoirs destroys wildlife habitats.  In some states it interferes with migration of salmon.  Areas at the end of the river may receive less water.

Solar Energy Advantages  Renewable  Does not cause pollution.not cience/energy/solarenergy/ Disadvantages  Current methods of collecting sunlight are expensive and inefficient.

Geothermal Energy Advantages  Clean and renewable. Disadvantages  Limited to areas where hot water is fairly close to the surface.

Wind Energy Advantages  Clean and renewable Disadvantages  Dependent on strong steady winds blowing most of the time.  Wind farms take up a lot of land.  Very noisy!!!

Biomass Energy Advantages  Renewable Disadvantages  Burning wood and crops release as much CO 2 as burning fossil fuels.  Biomass crops take up land that could be used to grow food.  Ethanol is still too expensive to produce on a large scale

Hydrogen Fuel Cells Advantages Clean source of energy. Disadvantages  H fuel cells are still too expensive to produce in large numbers  Limited number of fuel stations to supply cars. uid/2DD3B404-DF A961-CF D#