Answer:
Extortion: forcing to someone to give something (often money) to another person
Burglary: the theft or taking of items or things that do not belong to them
Uttering: to speak in a quiet and shy manner
Explanation:
:)
The thing that brought an end to the bear flag republic was: The arrival of US Troops in California.
The bear flag republic was founded by several hundreds of immigrants in California that rebelled against the Mexican department Government because they're not allowed to buy land in the state.