Web Location:http://nararenewables.org/groups/systemmetrics
Related Topics:4. Various sources of energy are used to power human activities.
Associated Grade Levels:7-89-1011-12
Clearwater Basin Biomass Atlas: IntroductionAssociated Grade Levels:7-89-1011-12
Clearwater Basin Boundary MapAssociated Grade Levels:7-89-1011-12
4.3 Fossil and biofuels are organic matter that contain energy captured from sunlight.