powerpoint Presentations

Today in computer class, I saw some powerpoints presentations of some environmental issueas that we are facing today from people in my group. I enjoy watching the presentations because I learned many things of what we could do to save our planet or to reduce the environmental problem. There were some presentations that were very fun because they used pictures from google that has some funny dialogs etc. If I could have the oportunity to do it again I would put some citations.