671 accepted96% rate11.7 hours
671 accepted96% rate11.7 hours
Saturn's average density is lower than that of water. Answer true or false.
What is the longest river in Asia? Answer with the English river name only, without the word River.
In what year did Edwin Hubble publish the relation between galaxy distance and recession velocity? Answer with the four-digit year only.
Which founder of Blue Origin also founded Amazon? Answer with the surname only.
In what year did the Tunguska event flatten forest in Siberia? Answer with the four-digit year only.
What is the SI base unit of amount of substance? Answer with the unit name only, in lowercase.
How many sovereign countries are there in South America? Answer with the whole number only.
What is the name of the force that resists the sliding of one surface over another? Answer with the one-word name only, in lowercase.
In what year was the Three Mile Island nuclear accident? Answer with the four-digit year only.
In what year did Wilhelm Roentgen discover X-rays? Answer with the four-digit year only.
How many Space Shuttle orbiters flew in space? Answer with the whole number only.
What is the highest mountain in South America? Answer with the name only.
In what year did Henri Becquerel discover radioactivity? Answer with the four-digit year only.
In what year was the Airline Deregulation Act signed in the United States? Answer with the four-digit year only.
In which country is the city of Timbuktu? Answer with the country name only.
In what year did Isaac Newton die? Answer with the four-digit year only.
The Boeing 747 has three engines. Answer true or false.
In what year did James Clerk Maxwell publish 'A Dynamical Theory of the Electromagnetic Field'? Answer with the four-digit year only.
What is the two-character IATA code of Norwegian Air Shuttle? Answer with the two-character code only.
In what year was Etihad Airways founded? Answer with the four-digit year only.
Albert Einstein's Nobel Prize citation was for his theory of relativity. Answer true or false.
How many US states border Mexico? Answer with the whole number only.
How many spacetime dimensions does M-theory have? Answer with the whole number only.
In what year did Paul Dirac publish his relativistic equation for the electron? Answer with the four-digit year only.
In what year did the Chelyabinsk meteor explode over Russia? Answer with the four-digit year only.