From the graph that we have here, the event that is responsible for this change is A product becomes less popular and fewer customers purchase it.
The reason this is the answer is because when e look at the graph closely, we can see that only demand fell from 50 to 40. There was no change in price, it remained at 15 dollars.
A fall in demand even at the same price that a good was sold previously shows us that less people are buying the product. This could be due to changing consumer preference.
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The Arabian Peninsula is a very harsh place. It is mostly covered by vast deserts, the sand storms are a regular occurrence, there's no rivers with constant water flow, and food is very scarce. This all made it very unattractive and risky for exploration or invasion by the other civilizations, so they just left the area and people in there to be in relative isolation for centuries, and that contributed to the development of the unique Arabian culture.
<span>The answer to your question would be (building better roads) - </span><span>In the course of human events that shaped the cultural evolution of the Yucatan peninsula the sacbe road network erected by the ancient Maya laid the groundwork for transportation systems that continue in use to this very day.
- hope this helps :)</span>
The correct options are the options B. To address economic difficulties, such as the standardization of currency, and option D. To provide for means of resolving conflicts between states.
There were 13 Articles of Confederation and 13 states, the Articles were modified because it was a growing country, specially after the war, and the Articles had their limitations, they were focus on the central government, but on the other hand it gaves sovereign to each state. With the modification it was neither one not the other but a mixture of both of them, that made a more complete Constitution of the United States.