This sequence can be modeled by

, and that if n is even, the number becomes negative. So the seventh number would be 3^6, and that is 729, since 7 is odd.
Answer:
As shown in the maps, the international boundaries in Europe changed considerably from 1980 to 2013.
Nationalism and super nationalism were to geographical processes that changed the number and function of those boundaries. It is about the breakup of the Soviet Union.
Explanation:
Some times people have a new idea that is thought to be out in the advance and then applied to the situation when it arises. Some times the situation occurs at it her place at another time, it appears to be intractable. From this process, the new idea gets squeezed out and it happens through the pressure of the circumstances.
The answer to your question is B
The answer is C. Natural sources are limited. People tend to get their resources from the environment in order to live and survive. Because of the increasing number of human population, resources become scarce and there is not enough supply for consumption in the near future.
Answer: See explanation
Explanation:
The Heckscher-Ohlin model refers to an economic theory which states that countries will export the goods that they can produce efficiently and in large quantities while they'll import those that they are less efficient in producing.
According to the H-O theorem, the pattern of trade that exists between countries as a result of the characteristics that are possessed by the countries. In such case, a capital-abundant country can produce a capital intensive good efficiently and therefore should export the capital intensive good. Likewise, a labor-abundant country can produce labor intensive good efficiently and therefore should export the labor-intensive good.