context: Pumped-storage hydroelectricity stores energy in the form of water pumped when energy is available from a lower elevation reservoir to a higher elevation one. The energy is recovered when demand is high by releasing the water, with the pump becoming a hydroelectric power generator.
question: পাম্পড-স্টোরেজ জলবিদ্যুৎ কোন ধরনের শক্তি সঞ্চয় করে?
answers: water pumped when energy is available from a lower elevation reservoir to a higher elevation one