12scienceWhat is the name of the hereditary blood disease that occurs chiefly among black people?Show AnswerLearn MoreShare
10scienceInventor Thomas Edison improved the major infrastructure of New York City in 1881 when he installed the world's first what?Show AnswerLearn MoreShare
16scienceBy what three-word phrase do we name the index used to measure the quantity of harmful particles and chemicals in the air?Show AnswerLearn MoreShare
10scienceName the three elements found in greatest percentage in the human body.Show AnswerLearn MoreShare
11scienceWhat is the unusual medical name for the fatal disease which appeared in 1976 among persons attending a convention in Philadelphia?Show AnswerLearn MoreShare
2scienceWhich German company, maker of precision cameras, revolutionized the world of casual photography in 1930 when it introduced 35 mm film in a canister, easily transportable and smoothly inserted into a camera?Show AnswerLearn MoreShare
7sciencePeople with the AIDS disorder are HIV positive. What is HIV an abbreviation for?Show AnswerLearn MoreShare
11scienceThis chemical element is an alkali metal, one of the lightest metals known. It is used in nuclear reactions, in batteries, in the glass industry, and as a medicine for the treatment of manic-depressive psychosis. What element is it?Show AnswerLearn MoreShare
17scienceProbably in every room of your home you have examples of what significant invention dating from about 1500 B.C.?Show AnswerLearn MoreShare
8scienceIn March, 1998, NASA announced that an unmanned lunar spacecraft had discovered up to 6 billion tons of ... what? ... on the moon?Show AnswerLearn MoreShare
12scienceWhat disease, caused by a deficiency of vitamin C, is characterized by bleeding gums and extreme weakness?Show AnswerLearn MoreShare
9scienceThis chemical element, symbol S, was known to the ancients; it is the brimstone of the Bible. What is it?Show AnswerLearn MoreShare
13scienceWhat is the name of the complex molecule that carries oxygen in the blood and gives blood its characteristic red color?Show AnswerLearn MoreShare