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harness to bring under control for effective use

hurdle a barrier or an obstacle

hurricane a severe cyclone with a wind speed more than 70 miles per hour, accompanied by heavy rain and lightning

Industrial Revolution a period from the late 1700s to the early 1800s when machines were used for doing work

insulate to cover with a material that prevents leakage or the transfer of heat

irreversible impossible to change

mechanical operated by a system of machines

offshore in the sea; not on land

precipitation rain, snow, or hail

replenish to bring something back to its previous levels by filling it up again

reverse to turn to an opposite situation

turbine a machine with blades rotated by the pressure of steam, air, or water

Renewable Energy in Action

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