Energy conservation 2

1. To use CFL light bulbs instead of incandescent light bulbs.
2.It is trying to tell us why we should use CFL lights.
3.Yes .The clip provides lots of evidence.
4.It can provide more evidence.

Energy conservation1

1.They generate a lot of noise and can only be built in some places and some time it is among other people's home.
2.Putting smaller turbines in residential areas.
3.We could put up posters around the school and organize events that encourages people to save energy.

energy conservation