Which element is the most abundant in Earth's crust by mass? Answer with the element name only, in English.
In what year did the Svalbard Global Seed Vault open? Answer with the four-digit year only.
Who discovered X-rays in 1895? Answer with the surname only, in plain letters without diacritics.
Helium is a noble gas. Answer true or false.
Which gas makes up about 21 percent of Earth's atmosphere by volume? Answer with the element name only, in English.
Who is known as the father of modern chemistry and named oxygen and hydrogen? Answer with the surname only.
What is the softest mineral on the Mohs scale? Answer with the mineral name only, in lowercase.
How many moons of Jupiter did Galileo discover in 1610? Answer with the whole number only.
Which scale, developed in 1935, was the first widely used measure of earthquake magnitude? Answer with the scale's surname only.
What is the largest living species of animal? Answer with the common name only, in lowercase.
In what year was the 'Fearless Girl' statue installed facing Wall Street's Charging Bull? Answer with the four-digit year only.
In what year did the Black Monday crash occur, when the Dow fell about 22.6% in a single day? Answer with the four-digit year only.
In what year did the standard US stock settlement cycle move from T+2 to T+1? Answer with the four-digit year only.
Who chaired the US Federal Reserve during the 2008 financial crisis? Answer with the surname only.
In what year was the startup accelerator Y Combinator founded? Answer with the four-digit year only.
In what year was the Shanghai Stock Exchange founded? Answer with the four-digit year only.
In what year did Robinhood hold its initial public offering? Answer with the four-digit year only.
