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To see the answer just click your mouse and drag it over the area after Answer: to highlight it. |
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Name the 20th-century scientist who discovered the brain's
"conditioned reflex" by testing whether dogs would salivate when
they heard a bell, regardless of whether or not food was present.
Russian physiologist Ivan Pavlov American psychologist B. F. Skinner German psychiatrist Frieda Fromm-Reichmann American psychologist John Watson Answer: Russian physiologist Ivan Pavlov  |
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When was the world's first video game invented?
1963 1938 1958 1969 Answer: 1958. The game, developed at the Brookhaven National Laboratory in Long Island, N.Y., resembled a crude version of Pong. |
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How many AIDS cases had been diagnosed worldwide by 1982,
one year after the disease was first discovered?
10,900 3 million 1,600 450,000 Answer: 1,600 |
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In 1994, the comet called Shoemaker-Levy 9 pounded into a
planet with a force estimated to be equal to that of all Earth's
nuclear bombs and weapons. What planet did Shoemaker-Levy 9
attack?
Jupiter Saturn Mars Pluto Answer: Jupiter |
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What was the name of the first handheld camera?
The Brownie The Twinkie The Polaroid The Cannon Sure-Shot Answer: The Brownie |
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