No idea what primary research so i'm going to assume you mean primary source in which case it depends on the type of evidence, like if it's a personal account then that's a primary source but if it's someone telling of someone else's story it's not.
Answer:
Mandarin
Explanation:
Mandarin Chinese (1.1 billion speakers) ...
English (983 million speakers) ...
Hindustani (544 million speakers) ...
Spanish (527 million speakers) ...ect.
All except improved distribution
Answer:
Petitions, Rallies, Signs infront of ur local state agencies, websites, talking to ur governments officals advisors, talking to said officals urself! Gathering and forming an organization, etc. Hope that helps!
Explanation:
