Proper MLA Formatting includes the following spacing Single (1.0)
One and a half (1.5)
Double (2.0)

Make 1 inch margins on the top, bottom, and sides.

The first word in every paragraph should be indented one half inch.

Indent set-off quotations one inch from the left margin.

Use any type of font that is easy to read, such as Times New Roman. ...

Use 12 point size.

Explanation:

because of all the immigration, america became one big melting pot. the diversity of cultures from all over the world made america somewhat divided as well. people that immigrated stayed with their kind, and their traditions, while native born americans stayed with their kind and their traditions. normally, people born in american scorned the immigrants as well. the new religions also divided america. in summary, it took away from the american culture and identified america as the "melting pot."