The Boeing 787 airframe is made largely of carbon-fiber composite. Answer true or false.
What is the name of NASA's program to return astronauts to the Moon, named after Apollo's twin sister? Answer with the name only.
How many states does Mexico have, not counting Mexico City? Answer with the whole number only.
What is the SI unit of magnetic flux density? Answer with the unit name only, in lowercase.
What is the capital of Canada? Answer with the city name only.
In what year did the Airbus A321XLR enter commercial service? Answer with the four-digit year only.
What is the two-character IATA code of Delta Air Lines? Answer with the two-character code only.
What is the SI unit of electrical capacitance? Answer with the unit name only, in lowercase.
In what year did Arthur Eddington's solar eclipse expedition measure the bending of starlight? Answer with the four-digit year only.
In what year did Max Planck present his quantum hypothesis for black-body radiation? Answer with the four-digit year only.
What is the two-character IATA code of Korean Air? Answer with the two-character code only.
In what year did the Boeing 737 make its first flight? Answer with the four-digit year only.
How many sovereign countries in Africa are UN member states? Answer with the whole number only.
Airport code ORD belongs to the main international airport of which US city? Answer with the city name only.
In what year did Valentina Tereshkova fly in space? Answer with the four-digit year only.
In what year did Chang'e 4 make the first soft landing on the far side of the Moon? Answer with the four-digit year only.
In what year was Richard Feynman awarded the Nobel Prize in Physics? Answer with the four-digit year only.
Who discovered Pluto? Answer with the surname only.
In which Chinese city was COVID-19 first identified? Answer with the city or town name only.
