Answer:
1.
an exchange of diverging or opposite views, typically a heated or angry one.
2.
a reason or set of reasons given with the aim of persuading others that an action or idea is right or wrong.
Answer: he was passionate about it and believed in racial integration.
Explanation:
he wanted black people to have their own land so they could seperate from white people and make their own territory
Answer: informal and casual.
Explanation:
Our online behaviour is part of our daily life. There are plenty of uses for the internet nowadays. Internet users have an online identity. According to the usage they give to the internet and especially the social networks they might have a formal or informal and casual identity. Someone who uses the internet for social reason only usually have an informal and casual identity because it helps to interact with other people.