text: These 2 explanations of why we should play a role in helping our environment and our health are very important, so my advice to anyone would be, yes you can have a car but don't use it all the time, think about what your doing to yourself and this world when you drive all the time, especially when it's not needed. Just think next time you drive.                                            25 years ago, a NASA spacecraft called Viking 1 was circling Mars, taking pictures of landing sites that its sister spacecraft, Viking 2, could possibly use. While circling Mars,