Answer:
stone axe and two stone smash to make a fire
Some factors that may make it difficult to keep speed during a stairway evacuation are exhaustion or the person's mental state. During a period of evacuation, the stress suffered is going to affect how people are going to respond, and how they are going to react. Also, the architecture of the stairway may affect the stairway evacuation process.
Answer:
The Invisible hand makes sure that the prices meet the demands and nothing is crazily priced.
Explanation:
The concept of competition is what causes this, as more producers enter a market the previous producers had to increase the quality of their products or decrease their price in order to make their goods more desirable so as someone finds a better way to produce the good at a better quality the other producers will have to make their good better as well in order to maintain their market share.
Out of that list, the one that was not a social problem the United States faced at the end of the Civil War was C. anger over women gaining the right to vote because women did <em>not </em>gain the right to vote following the Civil War - that would not occur until the 19th Amendment (women's suffrage) at the height of th early 20th century Progressive Movement.
