Muhammad, who they believed was their final prophet
Because the US needed to honor its vow to defend Russia
If you are talking about the tax collector from Britain that goes to tax the colonists, then he gets harmed. The colonists channel their anger through the tax collector to the government of Britain. They pour a sticky liquid on him and cover him in feathers.
Answer:
concrete
The most notable building technique introduced by the Romans was the use of concrete.
Explanation: