mới làm phần nói luôn
Nuclear energyIt's unlimited.It can be very dangerous.
Solar energyIt is not only plentiful and infinite but also clean and safe.It's only possible during the day time.
Wind powerIt is a clean & unlimited.There's no wind energy when there is no wind.
Water powerIt is a clean & unlimited.It is expensive.
Geothermal heatIt's available.It is only possible in few places.