Final answer:
Mechanical energy is the key driver for windmills pumping water, originating from solar energy and showcasing efficient energy conversion.
Explanation:
When the wind blows and a windmill turns to pump water out of the ground, the type of energy being used is mechanical energy.
Hydropower and wind power both originate from solar energy, which is the primary source of renewable energy for these systems.
The turbine in hydroelectric systems converts the mechanical energy of moving water into electricity, showcasing how kinetic energy can be harnessed effectively.
Learn more about energy sources and conversion here:
https://brainly.com/question/40522877
