Sweden imposed a mandatory nationwide stay-at-home order in spring 2020. Answer true or false.
What is the Pango lineage designation of the Delta variant? Answer with the lineage code only, e.g. 'A.1.2'.
Which New York governor held daily televised COVID-19 briefings in spring 2020? Answer with the surname only.
What was the name of the US Navy hospital ship sent to New York City in March 2020? Answer with the ship name only, without 'USNS'.
In what year did Krakatoa's catastrophic eruption occur? Answer with the four-digit year only.
How many hydrogen atoms are in one molecule of methane? Answer with the whole number only.
In what year did the Tohoku earthquake and tsunami strike Japan? Answer with the four-digit year only.
Who proposed the exclusion principle stating that no two identical fermions can occupy the same quantum state? Answer with the surname only.
In what year was the Human Genome Project declared complete? Answer with the four-digit year only.
What is the chemical formula of water? Answer with the formula only, using plain characters, no subscripts.
Who formulated the three laws of planetary motion published between 1609 and 1619? Answer with the surname only.
Who formulated the four equations of classical electromagnetism published in the 1860s? Answer with the surname only.
Whales are mammals. Answer true or false.
