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General Science Gk Questions

General Knowledge
33. The solar spectrum consists of large number of dark lines. They are called
 
  • A. Fraunhofer lines
  • B. Compton lines
  • C. Raman lines
  • D. Visible lines
Answer: A.
Fraunhofer lines
 
34. A common ore for copper is
 
  • A. Haematite
  • B. Magnetite
  • C. Malachite
  • D. Bauxite
Answer: C.
Malachite
 
 
35. The best example for symbiotic existence is
 
  • A. Yeast
  • B. Mucor
  • C. Bacteria
  • D. Lichen
Answer: C.
Bacteria
 
36. At what temperature are the readings of a Centigrade and Fahrenheit thermometer the same?
 
  • A. 40
  • B. -40
  • C. 100
  • D. 0
Answer: B.
-40