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In what year was the Fukushima Daiichi nuclear accident? Answer with the four-digit year only.
What is the two-character IATA code of EVA Air? Answer with the two-character code only.
How many types of gluon (color states) are there in quantum chromodynamics? Answer with the whole number only.
Qantas is the flag carrier of Australia. Answer true or false.
In a vacuum, a heavy object falls faster than a light one. Answer true or false.
A day on Venus (one sidereal rotation) is longer than a year on Venus. Answer true or false.
In what year was Sputnik 1 launched? Answer with the four-digit year only.
In what year did Albert Einstein present the field equations of general relativity? Answer with the four-digit year only.
What is the largest ocean on Earth? Answer with the ocean name only, without the word Ocean.
Which astronomer published the heliocentric model in 1543? Answer with the surname only.
In which country is Mount Kilimanjaro? Answer with the country name only.
In what year did Apollo 17, the last crewed Moon landing, take place? Answer with the four-digit year only.
What is the smallest US state by area? Answer with the name only.
What is the capital of Argentina? Answer with the city name only.
In what year did the Airbus A321XLR enter commercial service? Answer with the four-digit year only.
Which company builds the Falcon 9 rocket? Answer with the name only.
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.
How many sovereign countries in Africa are UN member states? Answer with the whole number only.
What is the IATA code of Tokyo Haneda Airport? Answer with the three-letter code 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.
Who discovered Pluto? Answer with the surname only.
What is the SI unit of radioactivity? Answer with the unit name only, in lowercase.
In what month of 2020 did Donald Trump announce he had tested positive for COVID-19? Answer with the month number (1-12) only.
What was the US government programme launched in 2020 to speed COVID-19 vaccine development? Answer with its full name, e.g. 'Operation X Y'.