Answer:
fire- used for clearing forests
wheel- used to travel from one place to another
metal- used for plows and weapons
dogs- used for herding and standing guard
Explanation:
As early human began to progress and move from one place to another, they developed new invention for survival. The fire used to clear the forest so that they could cultivate crops. The wheel used as transportation from one place to another. The metal used for making agricultural tools including ploughs along with weapons to defend from rivals and hunting. Dogs used for hunting, companionship, and protection.
Answer:
Why did some believe that US expansion was needed to preserve the "American Spirit?" They thought that America would need a strong navy to protect the markets. Also, in Alfred Mahan's book, The Influence of Sea Power Upon History, he says that America's future would rely on gaining new markets abroad.
Explanation:
Answer:
It was the first big business that helped lead to the Second Industrial Revolution.