We can say that the energy of water is only linked to the sun and is a secondary energy source of solar energy. Water energy generally refers to hydraulic potential energy. Solar radiation evaporates water in low places, forming high-altitude precipitation clouds, which are transferred to relatively high altitudes by atmospheric flow and return to the ground as precipitation, then move to relatively high altitudes in the form of surface water (or groundwater gushing from the surface). Lower flow. At this time, hydraulic potential energy is formed due to the difference in water level between upstream and downstream. The energy of water is therefore linked to the sun.
Geothermal energy is thermal energy located beneath the earth's surface. It is generated by the decay of radioactive elements near the center of the earth. The energy of desinEgration is stored underground in the form of thermal energy, heating groundwater. and form hot water or steam that exists in shallow underground layers or in wells above the ground. Geothermal energy therefore has nothing to do with the sun.
① Nuclear energy is atomic energy, which is energy from inside the earth, so it does not conform to the meaning of the question; ② Geothermal energy is energy coming from the interior of the earth, so it does not conform to the meaning of the question; ③ The energy of water is the energy of solar radiation, so it is consistent with the meaning of the question; ④ Bioenergy is the energy of solar radiation, so it is consistent with the meaning of the question; Coal and oil are solar energy stored over historical geological periods, so this fits the meaning of the question. So choose: C.