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The planet that moves fastest around the sun is

A. Mars

B. Venus

C. Earth

D. Mercury

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  1. When are temperature resistance
  2. The direction of heat flow between two objects depends on
  3. The spectrum of white light can be studied by
  4. To produce beats it is necessary to have two waves
  5. The ballistic missile, Agni 11, tested by India has a maximum range of
  6. Electromagnets are used in
  7. Fish and other aquatic creatures can live inside a deep frozen pond because
  8. Railway tracks are banked on curves so that
  9. The number of galaxies that are visible without telescope on clear dark nights and away from bright…
  10. Photocells are used
  11. The best estimates of the age of the earth comes from the studies of
  12. If you want a sound proof room, the walls should be
  13. A bullet is fired at a certain angle with the horizontal. Its path will be
  14. A pressure gauge for fluids is called
  15. The electroplating of a metallic article
  16. A device used to measure heights above sea level is known as
  17. A radio set that uses valves does not start operating immediately when it is switched on whereas a set…
  18. The mass number and the atomic number of an element are X and Y respectively. The number oC neutrons…
  19. The audible range of a normal human ear is frequencies ranging from
  20. The instrument used to determine the RD (Relative Density) of a liquid by the principle of floatation…
  21. A boy sitting in a train moving with a uniform velocity drops a coin outside. A man standing outside…
  22. The inability of a body to change its state of rest or uniform motion along a straight line is called…
  23. The mixing up of two gases as a result of random motion of molecules is called
  24. The fact that two large ships travelling on close parallel courses in the same direction tend to move…
  25. Which force is used when milk is churned to separate cream?
  26. The stars that shine brightly then dimly and then brightly are known as
  27. Choose the correct answer
  28. An electric fan converts
  29. The property of a fluid by which it resists relative motion within itself is known as
  30. When light travels from one medium to another there is a change in its