Final answer:
One type of action a global citizen can take to improve their town, country, or the world is volunteering for a local community service project. This helps contribute to the well-being of society and make a positive impact.
Step-by-step explanation:
A type of action a global citizen can take to improve their town, country, or the world is volunteering for a local community service project. Volunteering is a way to contribute to the well-being of society and make a positive impact. For example, a citizen could volunteer at a food bank to help alleviate hunger in their community. This act of service not only improves the lives of individuals locally, but it also contributes to the global goal of reducing poverty and promoting equal access to food worldwide.