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:
Kindly check explanation
Explanation:
Social study may be reffered to as a broad field which accesses and studied man's society, this means that it extensively covers aspects that has to do with man's indigenous and cultural life which is about the tribes and inclination of the different tribal groups. It also covers areas of geography which is about the physical environment, impacts of climate, weather, vegetation and so on. In addition, The historical background or origin is also covered in social study. Governance, politics which also has to do with our society and wellbeing is also an important aspect of social study. It introduces the different types of government. The roles of leaders and responsibility of followers and muvb more. These are only some core areas of social study which covers more Than 5 distinct fields.
Answer:
The three different branches of government include Legislative, Judiciary, and Executive. The different branches work with checks and balances to keep each other "in check." THinking about it, is that where the phrase, "in check" comes from?
Why each are important:
The Legislative makes the laws. (Congress, Senate, and House of Representatives)
The Executive enforces the laws.
THe Judiciary interprets the laws.
Answer:
One solution could be to build walls. Another solution could be to conscript some troops to protect your village.
