What is the purpose of the Energetic Materials Research and Testing Center? Pls don’t use a code or something can you just say a b c or d I would appreciate it

the answer is c. hope is

where is thing if you show me on the map or have a map i can answer your question

after the spaniards introduced horses to plains native americans, the lives of the tribes changed. tribes became less settled and sedentary. the horse allowed them to hunt animals such as bison or buffalo, and, instead of staying in one place, tribes began to be nomadic.