You can also enter the webquest from my personal website:
I would like to thank the
WEB SOURCES USED, especially:http://zunal.com/webquest.php?user=3413
http://www.nrel.gov/data/pix/ (all images)
www.zunal.com provided the free template that made it possible to create this WebQuest.
And SM teachers for their kind explanations¡¡