What are non-renewable and renewable sources of energy? What are ocean waves called thatdisperse heat? What sound pitch does a dog hear? An elephant?
Ocean currents
Convection currents
Wave currents
Low
High
Medium
Can be used and reused
Can only be used once or twice
Can be used only once
Our bodies, water, sun, wind
Electricity, gasoline
Oil or coal
Sun
Wind
Water
Nuclear
Gasoline