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.
Answer:
Education is the result of the educational process that implies preparation to transform a reality from the knowledge, skills, values and abilities that are acquired at each stage and throughout life. Development is achieved through the education of critical and creative people who generate new knowledge and respond from a historical-cultural perspective to present and future problems, transforming and enriching society.
Explanation:
The progress of humanity largely depends on education. Educating is a process and as such implies the idea of advancement and progress. The education of individuals implies the end achieved, that is, we speak of social action (educating) on individuals (social beings), enabling them (capacity development) to understand their reality and transform it in a conscious, balanced and efficient way so that they can act as socially responsible people. Education therefore implies the idea of optimization; that is to say, whoever tries to educate others (heteroeducation) or who tries to educate herself/himself (self-education) assumes the idea of the improvement of the social individual, therefore this constitutes a function of society.
Answer: Research question
Explanation:
Research question is defined as the question to inquire about any particular incident or situation.This question is answered by candidates to start any qualitative and quantitative research or study. This question initially helps in gathering content, data,facts, etc to investigate and analyzing further on the issue.
According to the question, Dr. Jenka has raised a research question by inquiring about the impact of war in Afghanistan and Iraq on children's elevated fear and concern.This will help him to start the research on that subject.
Relating to interaction with other people especially for pleasure a busy social life.
