Answer:
Assuming you mean ocean ridges, it would be D.
Explanation:
A mid-ocean ridge is formed by seafloor spreading. New ocean crust is formed by magma getting pushed up. The plates move away from each other so the crust would have room to form.
I have attached a picture of the process for visual explanation.
The answer is C
So the United States could form a stronger government.
Answer: Assimilation
Explanation: Assimilation is the technique through which minority culture persisting groups are grouped togather to form a dominant cluster . It converts various minority culture in a single unit of mainstream culture .By making a dominant cultural group their values, beliefs ,etc are considered for functioning.
The case mentioned in the question also describe about the cultural assimilation as the merging of different culture into one major culture group to become dominant.
Answer:
By Conquering other kingdoms.
Explanation:
After winning the war, the kingdoms will take ownerships over the land and resources that exist in the losing kingdom. (even enslaving the citizens of the losing kingdoms was a common practice in this time period) This will massively increase the wealth of the winners and make the rulers become more powerful.
This practice stopped in 1600s , after European empires developed navigation technology and realized that colonizing weaker countries on another continent was more beneficial for them.