Who was the chief scientific adviser of Operation Warp Speed? Answer with the surname only.
In what year was 'On the Origin of Species' first published? Answer with the four-digit year only.
What is the hardest mineral on the Mohs scale? Answer with the mineral name only, in lowercase.
What is the common name of the compound with the formula NaCl? Answer with the two-word common name only, in lowercase.
What is the common name of the compound with the formula NaCl? Answer with the two-word common name only, in lowercase.
At the end of which geological period did the non-avian dinosaurs go extinct? Answer with the period name only.
Who led the gold-foil experiment analysis that revealed the atomic nucleus in 1911? Answer with the surname only.
In which country is the volcano Eyjafjallajokull, which disrupted air travel in 2010? Answer with the country name only.
Earth's outer core is solid. Answer true or false.
What is the deepest known point in Earth's oceans? Answer with the two-word name only.
Which element is the most abundant in Earth's crust by mass? Answer with the element name only, in English.
Which element is the most abundant in Earth's crust by mass? Answer with the element name only, in English.
In what year did Sputnik 1, the first artificial satellite, launch? Answer with the four-digit year only.
Who developed the first successful rabies vaccine in 1885? Answer with the surname only.
How many base units are there in the International System of Units (SI)? Answer with the whole number only.
What is the SI unit of force? Answer with the name only.
What is the nearest large spiral galaxy to the Milky Way? Answer with the name only.