text: Avoiding car usage is a difficult feat to an everyday car user but if you can avoid it then it can really effect the enviorment in a positive way. Making a day for no cars or at least a small amount of car usage can really impact the enviorment. This movement has even begun to start in the United States and hopefully will continue from then on into the future when we eventually have a whole lot of fueless cars for everyone to drive in.    The authors suggustin that we should study Venus is worh it even though it will be really hard to get anyhing back from there becasue there is only drownes that could go so that they can pick up rocks"safely far above the planet can provide only limited insight on good "