Science Quiz #739
A new science quiz is available each week. Try our daily general knowledge quiz or work through our archive of daily and themed quizzes.
Q1. What is a group of owls called?
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Q2. What colour are copper sulphate crystals?
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Q3. What is the disorder OCD?
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Q4. What is the name for the decrease in size of tissue or an organ due to physiological change from old age, or lack of use, nutrition or nerve supply?
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Q5. In air, at 20 °C (68 °F), how much faster than the speed of sound is the speed of light?
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Q6. Some species of this insect carry the parasite which causes Chagas disease, some use plant resin to help catch prey, some inject a toxin, some suck human blood, and all have a curved beak which lies in a groove between the front legs. What is it?
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Q7. What was the first standardised system of measurement established in Mesopotamia?
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