GEOSC 010 Chapter Notes - Chapter 23: Methane Clathrate, Nuclear Fission, Bauxite
Document Summary
Oil sands are clay, sand, water, and bitumen or tar. Refining of oil sands is a very expensive process to extract crude oil. Oil shale is recovered with a lot of scientific processes and is about. 1/8 of the heat energy of crude oil. Oil shale is a resource that can replace crude oil as it: distinguish between renewable and nonrenewable resources. Renewable resources can be replenished over time, while nonrenewable resources are formed in the earth and take millions of years to replenish. Groundwater can be placed in both categories depending on the withdrawal of the water. Learning objectives: traditional fossil fuels and their contribution. A fossil fuel is energy that originally came from plants and the sun millions of years age. Coal, oil, and natural gas are fossil fuels. At one time 90% of energy used was coal. Now the planet uses about 20% of coal for energy.
