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.
Associated Grade Levels:9-1011-12
4.3 Fossil and biofuels are organic matter that contain energy captured from sunlight.
6.5 Social and technological innovation affects the amount of energy used by human society.
4.7 Different sources of energy and different ways energy is transformed, transported, and stored.