Answer:
correct answer is option a and d
The goal is resource sharing
It should be formal! (answer b).
The hint in the question is that the city major will attend the ceremony- this tells you that the ceremony will have a more representative, formal character, and will not be an internal celebration among people who know each other (this would make it informal or semi-formal).
Answer:
diamonds and oil
Explanation:
when farmers started noticing these "clear rocks" they decided to trade them for food and supplies and thats when the diamond craze started. it caused thousands of immigrants to move to america.