A scientist is performing an investigation to determine the melting point of a new substance. Which action is NOT important in this investigation? a)repeating the investigation multiple times
b)experimenting with multiple substances
c)writing out the procedures used in the investigation
d)reporting the results accurately

d) is the answer

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.

i'll try what topic lol