A) a barter system that does not rely on money or other currency.
Answer: <u>Assembling perpective</u> is a system for understanding collective behavior that credited individuals in crowds as rational beings. This theory refocuses attention from collective behavior to collective action, which is based on a shared interest.
Explanation:
Assembling perspective is briefly explained above.
Answer:
Are responsible family members.
Respect and obey the laws of the land.
Respect the rights and property of others.
Are loyal to their country and proud of its ccomplishments.
Take part in and improve life in their communities.
Take an active part in their government.
Use natural resources wisely
He is not afraid of death.
He is always hopeful and never loose hope.
He protect his country from its enemies.
Mathematics was the tool which scientists used to prove their theories and ideas. Mathematics was able to prove whether an idea a certain scientists had was correct or whether it was wrong. With this they wre able to advance the field very rapidly.