Related Topics:6. The amount of energy used by human society depends on many factors.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
8.6 Liquid fuel can be produced from wood feedstocks.
4.1 Humans transfer and transform energy from the environment into forms useful for human endeavors
6.3 Human demand for energy is increasing.