Who is regulating marriages and how are they terminated?

Research: Marriage Across Cultures with the focus on Norwegian(marriage) culture. 1) What are some of your preliminary findings? Briefly summarize each of them.(Need to use academic source and or scholarly source like google scholar) Then from those sources, the research needs to answer the following 6 questions:
1.How are marriages determined? Are they arranged or based on love and what is the process?
2. Who is regulating marriages and how are they terminated?
3. How are they celebrated?
4. What function does the marriage serve?
5. What traditional wedding food if any is prepared and served?
6. How does religion influence weddings and the celebrations?
One of the 4 sources needs to come from: https://ehrafworldcultures.yale.edu/ehrafe/