Porque means "because" in Spanish (and Portuguese).
It can show you what the speaker is doing and thus you will know why they are doing it. once you know this you will know what to expect in a speech and thus the speech does not work on you as effectively.
Globalization is the spread of products, technology, information, and jobs across national borders and cultures. In economic terms, it describes an interdependence of nations around the globe fostered through free trade.