Hich process involves unifying various social groups into one society?

This process is called social integration.

Social integration is a process during which newcomers and minorities are incorporated into the social structures of their host society.

Social integration means accepting local costumes and daily practices of the new host. The host can be a new country, a new workplace or a new school.

Social integration starts with accepting the fact that some changes and adjustments are necessary, it also means an effort to combine and prevent one own's identity with the identity of the new host.

This process can not be forced as the groups being integrated have to want it in the first place. Failing to integrate into a society can cause social exclusion and polarizations

the answer is

a) revise existing treaties

b) do away with political alliances

c) prevent the spread of communism

d) bring an end to european colonization

the main goal of the southeast asia treaty organization was to prevent the spread of communism in southeast asia.

the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.