Energy. The volume compartment has many different sources but the power source plays a role in our life. If there is a lack of electricity in life, you will not be able to use it for studying, for daily work, you will not be able to access social networks .. More than that, even reading can not be read and you try How frightening would it be to take a bath in "the dark"? Therefore, our country in particular and the world in general need to join hands in saving electric fuel, propagating people not to waste electricity. actively invent new power sources such as solar batteries, wind power ... One day we will save electricity easily, try it!
#khang
