824 accepted97% rate12.7 hours
824 accepted97% rate12.7 hours
What was Merriam-Webster's word of the year for 2021? Answer with one word only, in lowercase.
In what year did India's Delta-driven second COVID-19 wave peak? Answer with the four-digit year only.
US social distancing guidance advised staying at least how many feet apart? Answer with the whole number only.
The SARS-CoV-2 reference genome (Wuhan-Hu-1) is about how many kilobases long, rounded to the nearest whole kilobase? Answer with the whole number only.
In which US state was the first confirmed US case of COVID-19 reported in January 2020? Answer with the state name only.
Who was Prime Minister of New Zealand during its 2020 elimination strategy? Answer with the surname only.
How many micrograms of mRNA were in one adult primary dose of the Pfizer-BioNTech vaccine? Answer with the whole number only.
Which NIH scientist was a lead designer of the Moderna vaccine's spike antigen? Answer with the surname only.
Who was the chief scientific adviser of Operation Warp Speed? Answer with the surname only.
Which layer of the atmosphere is closest to Earth's surface? Answer with the layer name only, in lowercase.
In which country is the volcano Eyjafjallajokull, which disrupted air travel in 2010? Answer with the country name only.
Who developed the first successful rabies vaccine in 1885? Answer with the surname only.
In what year did the Svalbard Global Seed Vault open? Answer with the four-digit year only.
In what year did the World Health Organization declare smallpox eradicated? Answer with the four-digit year only.
Helium is a noble gas. Answer true or false.
Which scientist developed the binomial system of naming species? Answer with the surname only.
Which element has the highest electronegativity on the Pauling scale? Answer with the element name only, in English.
Sound travels faster in water than in air. Answer true or false.
What is the softest mineral on the Mohs scale? Answer with the mineral name only, in lowercase.
Who was the first human in space? Answer with the surname only.
On average, about how many minutes does sunlight take to reach Earth? Answer with the whole number of minutes, rounded down. Answer with the whole number only.
Who first synthesised urea from inorganic materials in 1828? Answer with the surname only, in plain letters without diacritics.
In what year did Facebook agree to acquire WhatsApp? 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.