Passive solar technologies ________.
use silicon wafers to generate light energy use photovoltaic cells to produce light energy use mechanical devices to heat water and buildings or electrical devices to generate electricity use mirrors to concentrate the sun's rays on a tower or a series of pipes holding water use the energy of sunlight without relying on electrical or mechanical devices
Passive solar technologies use the energy of sunlight without relying on electrical or mechanical devices. These technologies typically involve architectural design and materials that maximize the absorption of sunlight for heating and natural lighting, such as strategically placed windows, thermal mass, and insulation.