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Which of the following parts of the sun is easily visible only during a total solar eclipse?

A. core

B. photosphere

C. sunspots

D. corona

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  1. Which of the following elements is obtained from sea weeds ?
  2. Which of the following elements is non-radioactive?
  3. Which of the following parts of the sun is easily visible only during a total solar eclipse?
  4. The marine animal called dugong which is vulnerable to extinction is a/an
  5. The smallest functional and structural unit of kidney is called as
  6. The metallic constituents of hard water are
  7. Permanent hardness of water can be removed by adding
  8. The formula of Plaster of Paris is
  9. The fastest acting enzyme in the biological kingdom is
  10. Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of
  11. The Panda belongs to the same family as that of
  12. In a certain electronic circuit the output is positive if input 1 is positive and input 2 is zero. If…
  13. What is the unit for measuring the pitch or frequency of sound ?
  14. Which of the following is in liquid form at room temperature ?
  15. Brass gets discoloured in air due to the presence of which gas in air
  16. Glass is made from the mixture of
  17. Nitrification means
  18. Earth's seasons are caused by which of the following?
  19. The colour of Emerald is
  20. Bromine is
  21. The metal used in storage batteries
  22. The intencity of Earthquakes is measured on
  23. Liquefied Petroleum gas (LPG) consists of mainly
  24. Apparatus invented by Archimedes is :
  25. Which of the following characters is not shown by hydrogen
  26. Old-written material, which cannot be read easily can be read by
  27. Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?
  28. Cell membrane is
  29. Polythene is industrially prepared by the polymerisation of
  30. The major ingredient of leather is