Renewable energysourcesare Wind power and ethanol. Option (b) and (d) are correct.What do you mean by Energy?Energy is a physical system'sabilityto perform labor.Energy that is derived fromresourcesthat can be regenerated naturally over time and are therefore considered to be renewable. It includes energysourceslike sunlight, wind, water currents, and geothermal heat. Despite the fact that themajorityof renewable energy sources are sustainable, some are not.For instance, certain biomass sources are deemedunsustainableat the rate at which they are being used. Renewable energy frequently supplies energy for stand-alone power systems, air and water heating/cooling, andelectricitygeneration to a grid.Therefore, Option (b) and (d) are correct. Wind power and ethanol.Learn more aboutEnergy, here;brainly.com/question/1932868#SPJ2...

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