Science Quiz #408
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. Because of the speed at which the earth and the moon move relative to the sun, a total solar eclipse can never last more than how long?
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Q2. What event affecting television happened in the United States on 8 September 2008 and in Canada on 31 August 2011?
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Q3. Where in the eye do cataracts occur?
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Q4. Which of these is an instrument in the diagnosis of certain heart disorders?
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Q5. The chemical messenger that transports signals from one cell to another, called phytohormone in plants, is called what in animals?
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Q6. Which planet has a diameter of 7,520 miles (12,104 km) and a mass 0.82 times that of the Earth?
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Q7. What does a norovirus cause in people?
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