How is geothermal energy transferred from nature to human use?

These underground reservoirs of steam and hot water can be tapped to generate electricity or to heat and cool buildings directly. ... It is simply power derived from the Earth's internal heat. This thermal energy is contained in the rock and fluids beneath Earth's crust.

a tetrad is the foursome during meiosis made by two homologous chromosomes that have each already replicated into a pair of sister chromatids.