Question: Central station electricity can often be generated with higher efficiency than a mobile engine/generator. While the efficiency of power plant generation and diesel locomotive generation are roughly the same in the nominal regime, diesel motors decrease in efficiency in non-nominal regimes at low power while if an electric power plant needs to generate less power it will shut down its least efficient generators, thereby increasing efficiency. The electric train can save energy (as compared to diesel) by regenerative braking and by not needing to consume energy by idling as diesel locomotives do when stopped or coasting. However, electric rolling stock may run cooling blowers when stopped or coasting, thus consuming energy.
Is there an answer to this question: How can electric power plant become more power efficient?

Answer: it will shut down its least efficient generators

Question: The early synapsid mammalian ancestors were sphenacodont pelycosaurs, a group that produced the non-mammalian Dimetrodon. At the end of the Carboniferous period, this group diverged from the sauropsid line that led to today's reptiles and birds. The line following the stem group Sphenacodontia split-off several diverse groups of non-mammalian synapsidssometimes referred to as mammal-like reptilesbefore giving rise to the proto-mammals (Therapsida) in the early Mesozoic era. The modern mammalian orders arose in the Paleogene and Neogene periods of the Cenozoic era, after the extinction of the non-avian dinosaurs 66 million years ago.
Is there an answer to this question: Which early mammalian ancestor produced non-mammalian Dimetroden?

Answer: sphenacodont pelycosaurs

Question: For an unprecedented eight consecutive years, from the 200304 television season through the 201011 season, either its performance or result show had been ranked number one in U.S. television ratings. The popularity of American Idol however declined, and on May 11, 2015, Fox announced that the series would conclude its run in its fifteenth season.
Is there an answer to this question: What year did FOX announce the cancellation of American Idol?

Answer: 2015

Question: In 2000, Dell announced that it would lease 80,000 square feet (7,400 m2) of space in the Las Cimas office complex in unincorporated Travis County, Texas, between Austin and West Lake Hills, to house the company's executive offices and corporate headquarters. 100 senior executives were scheduled to work in the building by the end of 2000. In January 2001, the company leased the space in Las Cimas 2, located along Loop 360. Las Cimas 2 housed Dell's executives, the investment operations, and some corporate functions. Dell also had an option for 138,000 square feet (12,800 m2) of space in Las Cimas 3. After a slowdown in business required reducing employees and production capacity, Dell decided to sublease its offices in two buildings in the Las Cimas office complex. In 2002 Dell announced that it planned to sublease its space to another tenant; the company planned to move its headquarters back to Round Rock once a tenant was secured. By 2003, Dell moved its headquarters back to Round Rock. It leased all of Las Cimas I and II, with a total of 312,000 square feet (29,000 m2), for about a seven-year period after 2003. By that year roughly 100,000 square feet (9,300 m2) of that space was absorbed by new subtenants.
Is there an answer to this question: What was the total amount of space that Dell leased in Las Cimas 2 and 3?

Answer:
unanswerable