Children take electricity and other energy sources for granted, until one day their community has a power blackout. They come to realize that in lighting homes and keeping houses warm, we are using up natural resources that can't be easily replaced. If we fail to save energy,...
Children take electricity and other energy sources for granted, until one day their community has a power blackout. They come to realize that in lighting homes and keeping houses warm, we are using up natural resources that can 1/2t be easily replaced. If we fail to save energy,...