text: As I have explained, there are many positive effects on society from limiting car usage. Pollution reduction, avoided deaths or injuries, and money saving are all very good reasons to change our ways of transportation. So, why not?                                                                            Do you really believe the face on mars was made by an alien? Well my name is Sydney, and im a scientist here at NASA.Im here to tell you the truth about the ¨Face on Mars.¨ Lets begin by telling you the how the face on mars was discovered.