Hello. This question is incomplete. The full question is:
"Technological improvements and reduced equipment costs have made converting solar energy directly into electricity far more cost-efficient in the last decade. However, the threshold of economic viability for solar power (that is, the price per barrel to which oil would have to rise in order for new solar power plants to be more economical than new oil-fired power plants) is unchanged at thirty-five dollars. Which of the following, if true, does most to help explain why the increased cost-efficiency of solar power has not decreased its threshold of economic viability?
(A) The cost of oil has fallen dramatically. (B) The reduction in the cost of solar-power equipment has occurred despite increased raw material costs for that equipment. (C) Technological changes have increased the efficiency of oil-fired power plants. (D) Most electricity is generated by coal-fired or nuclear, rather than oil-fired, power plants. (E) When the price of oil increases, reserves of oil not previously worth exploiting become economically viable."
Answer:
(C) Technological changes have increased the efficiency of oil-fired power plants.
Explanation:
Economic viability is able to reveal the degree of acceptance of consumers in relation to a specific product. This viability is important to understand how the product will be received in the market and how profitable or not it can be for those who produce it.
Economic viability is usually greater when the cost and benefit ratio of the product or service is favorable, however this is not always the case.
Regarding the use of solar energy, although technological changes have made the installation and equipment of this type of energy more cost-effective, these technological changes have also increased the efficiency of oil plants. As a result, the economic viability of solar energy has declined.
<span>three interactive factors that play a critical role in shaping our personality according to social cognitive theory are: </span><span>cognitive-personal factors, behaviors, and environmental factors
Cognitive0personal factors refers to our determinism to maintain a certain value. Behaviors refer to how the habit that we choose every day. Environmental factors refers to the relationship that we have with the social group around us</span>
As the map is not complete and I can not see the letter on the dot on China, it is China which was treated in this manner.
Explanation:
In the 19th century and the beginning of the 20th century, China was a very weak country, which was weird when taken in account the population it had and the vast resources it possessed. The problem was internal, and the economy that was primitive compared to the more developed countries.
The European countries used this, and through military conquests manged to conquer parts of China and divide it into spheres of interest. The focus was mainly on the coastal areas, as they were of huge economic importance, so pretty much all of the coastline of China was under the rule of European countries, which despite their disagreements, actually worked together against China.
The Fourteenth Amendment states that anyone born in the US (and African Americans) the right to citizenship. During this time, African Americans were not considered US citizens. The Fourteenth Amendment changed this permanently.
