Which element is the most abundant in the universe by mass? Answer with the element name only, in English.
In what year was the Paris Agreement on climate change adopted? Answer with the four-digit year only.
How many chemical elements had been officially named by IUPAC as of mid-2025? Answer with the whole number only.
Antarctica is the driest continent. Answer true or false.
How many quark flavours are there in the Standard Model? Answer with the whole number only.
Which gas makes up about 21 percent of Earth's atmosphere by volume? Answer with the element name only, in English.
Earth's inner core is solid. Answer true or false.
How many carbon atoms are in one molecule of benzene? Answer with the whole number only.
What is the SI unit of power? Answer with the name only.
Whose 1929 observations showed that galaxies recede at speeds proportional to their distance? Answer with the surname only.
In what year was the Higgs boson's discovery announced at CERN? Answer with the four-digit year only.
Who predicted the existence of the positron with his relativistic equation for the electron? Answer with the surname only.
Avogadro's constant is about 6.022 times 10 to what power per mole? Answer with the whole number only.
In what year did Mount Vesuvius destroy Pompeii? Answer with the year only, as a number. Answer with the whole number only.
At standard atmospheric pressure, what is the boiling point of water in degrees Fahrenheit? Answer with the whole number only.
In what year did the first controlled nuclear chain reaction, Chicago Pile-1, take place? Answer with the four-digit year only.
