Which of the following is true?
A) Practical technology for the use of solar energy has not yet been developed.
B) Solar-thermal electrical production is only at the experimental stage.
C) Flat-plate solar collectors were sold in newspapers and merchandise catalogs almost 100 years ago.
D) Solar energy is nonrenewable, and the technology associated with its use is highly centralized and expensive.

Question

Quizplus · Accepted Answer

Flat-plate solar collectors have been sold in newspapers and merchandise catalogs almost 100 years ago, indicating that practical technology for the use of solar energy has been developed and available for a while now. Option A is therefore incorrect. Solar-thermal electrical production is not only at the experimental stage, as numerous successful solar-thermal power plants currently exist around the world. Therefore, option B is incorrect. Finally, solar energy is a renewable source of energy, and technological advancements have made it more decentralized and affordable. Therefore, option D is also incorrect.

Which of the Following Is True