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It is easier to climb down a staircase than climb up because in climbing down

A. work is done against gravity

B. the steepness of the staircase isn't felt

C. gravity assists

D. there is no friction between the legs and steps

You can do it yup
  1. In very cold countries alcohol is used as a thermometric liquid because
  2. A tube light works on the principle of
  3. Cosmic rays contain
  4. Which of the following pairs is not correct?
  5. The temperature of a large bucket-full of hot water (a few degrees below boiling point) is lower than…
  6. In the electrical circuit of a house the fuse acts as
  7. Warm air will hold more water vapour than cold air because
  8. In a refrigerator cooling is produced by
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  10. The device that is used to measure the electromotive force of a cell is
  11. Out of the following which is an insulator?
  12. If an object is placed between two parallel plane mirrors, the number of images formed will be
  13. The colour of a star is an indication of its
  14. The best estimates of the age of the earth comes from the studies of
  15. If a body weight 12N on the surface of the earth, how much will it weigh on the surface of the moon…
  16. A lightning conductor installed in a building
  17. In which of the following will a piece of iron weigh most?
  18. Hydrophone is an instrument used
  19. Formation of shadows can be explained by
  20. When the resistance of a circuit increases the current will
  21. A light year means
  22. The power of a lens is
  23. The following are the atmospheric zones above the surface of the earth:A) Troposphere B) IonosphereC)…
  24. Mica is used in an electric iron because it is a
  25. Which of the following is not electromagnetic waves?
  26. Thick brick walls are used in the construction or a cold storage because bricks
  27. When white light passes through a glass prism we get a spectrum on the other side of the prism. In the…
  28. Compared to the atomic bomb, the destructive power of a hydrogen bomb is
  29. In the nucleus of an atom, the uncharged particle is
  30. The instrument used to measure atmospheric pressure is