597 accepted100% rate10.0 hours
597 accepted100% rate10.0 hours
In what year did the Airbus A380 enter commercial service? Answer with the four-digit year only.
In what year did Amelia Earhart disappear over the Pacific? Answer with the four-digit year only.
The Moon has a thick atmosphere. Answer true or false.
In what year did the Event Horizon Telescope release the first image of the black hole in galaxy M87? Answer with the four-digit year only.
Which planet is closest to the Sun? Answer with the name only.
Istanbul is the capital of Turkey. Answer true or false.
In what year did Michael Faraday discover electromagnetic induction? Answer with the four-digit year only.
In what year did the Airbus A350 enter commercial service? Answer with the four-digit year only.
Photons have zero rest mass. Answer true or false.
In what year was the European Space Agency established? Answer with the four-digit year only.
How many engines does the Airbus A380 have? Answer with the whole number only.
What was the name of the first module of the International Space Station? Answer with the name only.
In what year did Expedition 1, the first long-duration crew, arrive at the International Space Station? Answer with the four-digit year only.
In what year did the Boeing 777 enter commercial service? Answer with the four-digit year only.
What is the two-character IATA code of All Nippon Airways? Answer with the two-character code only.
Which airline alliance does Air France belong to? Answer with the alliance's full name.
What is the most populous country in Africa? Answer with the country name only.
How many seconds are in one day of exactly 24 hours? Answer with the whole number only.
What is the capital of Kazakhstan? Answer with the city name only.
How many countries share a land border with Germany? Answer with the whole number only.
What is the largest US state by area? Answer with the name only.
Which color of visible light has the longest wavelength? Answer with the color name only, in lowercase.
What is the two-character IATA code of Turkish Airlines? Answer with the two-character code only.
Which planet did William Herschel discover in 1781? Answer with the name only.
In what year did Wolfgang Pauli propose the existence of the neutrino? Answer with the four-digit year only.