The question which stated "What percent of the universe is visible" the explanation to the question was incomplete it was ended like this: "These mysteri…" ( I added full stops because of autocorrect) and "In what type of matter are atoms most tightly packed also had an incomplete explanation which ended like this " With no regular ar"
Unfortunately, this test will not be able to receive a prize:
Not an original test. Questions, answers, explanations were copied from an existing test. E.g.
#q3 - https://trivia.net/what-kind-of-scientist-was-linus-pauling
#q4 - https://trivia.net/what-percent-of-the-universe-is-visible
#q5 - https://trivia.net/according-to-galileo-s-biographer-what-tower-did-he-climb-to-prove-his-law-of-falling-objects-theory