Which one of the following statements does  not  accurately describe vibrations?                 a.  forced vibrations, such as those between a tuning fork and a large cabinet surface, result in a much lower sound than was produced by the original vibrating body.      b.  resonance occurs as a result of sympathetic vibrations.      c.  a non-vibrating object can begin to vibrate as a result of forced vibrations.      d.  two bodies with the same vibration frequency that are placed next to each other will exhibit sympathetic vibrations as one body causes the other to vibrate.

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.

name and explain one of the event that occurs during meiosis that increases the variation in offspring even more than simple reproduction?