something that has been transformed from a primary energy source into a more useful form for powering lights, cooking, heating, machines, etc. Electricity, gasoline, and biofuels are examples of secondary energy sources.
pltintern
Christine Song supports both Project Learning Tree (PLT) US and Canada's program delivery and reporting, program research, and communications. Christine holds a Master of Environmental Science from the University of Toronto and and a combined degree with a Bachelor of Science in ecology and zoology and a Bachelor of Science in anthropology from the University of Calgary.
