text: Limiting car usage has many pros, including decreased air pollution and increased mental and physical well-being of the world's people. The next time you unlock your car to drive two minutes to your friend's house, stop and consider the consequences of your actions. Consider the health of yourself and your planet, and try walking instead.    Imagine your school principal announcing that all students must participate in at least one after school activity. Would you agree with him. I would agree with him,because I think after school activities are beneficial. They benefit students because they can find new passions or hobbies and it can help students do better in school.