Related Topics:4. Various sources of energy are used to power human activities. 8. Wood based bio-fuels are one form of energy that is renewable
Associated Grade Levels:9-1011-12
4.7 Different sources of energy and different ways energy is transformed, transported, and stored.
8.1 Sources of cellulosic residuals used are found in forest operations and in industry process
8.8 Life cycle analysis take account of ecological factors that are in steps of the supply chain.