The intencity of Earthquakes is measured on

A. Beaufort scale

B. Secant scale

C. Mercalli scale

D. Richter scale

You can do it
  1. The most important ore of Aluminium is
  2. Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?
  3. Which of the following elements is obtained from sea weeds ?
  4. Glass is made from the mixture of
  5. The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
  6. The colour of Emerald is
  7. The metal that is present in Photo Films is
  8. Apparatus invented by Archimedes is :
  9. Cell membrane is
  10. The hardest substance available on earth is
  11. The oxide of Nitrogen used in medicine as anaesthetic is
  12. What is the unit for measuring the pitch or frequency of sound ?
  13. When a gas is turned into a liquid, the process is called
  14. The removal of top soil by water or wind is called
  15. Earth's seasons are caused by which of the following?
  16. Brass gets discoloured in air due to the presence of which gas in air
  17. The major ingredient of leather is
  18. The fastest acting enzyme in the biological kingdom is
  19. Which of the following is commonly called a polyamide ?
  20. Which of the following characters is not shown by hydrogen
  21. Epoxy resins is used as
  22. Rust is
  23. Lightening cause rainfall because
  24. The fastest-running terrestrial animal is
  25. In an atomic nucleus, neutrons and protons are held together by
  26. The element present in the largest amount in rocks and minerals is
  27. The recent atomic weight scale is based on
  28. The property of a substance to absorb moisture from the air on exposure is called
  29. Which of the following elements is a metal
  30. The metal used in storage batteries