By velocity, you are referring to the speed of sound. It can be modelled by the equation:
V = 331m/s + (0.6m/s/C) x T (where T stands for temperature and V stands for Velocity).
Plug in the numbers and you'll get 343m/s
The statement is - True.
Mount Elbert has an elevation of 4,401 meters (which is almost three miles), and it has a prominence of 2,772 meters. It is the highest summit of the Rocky Mountains of North America. Mount Elbert also represents the highest point of the state of Colorado, and it is also the highest point of the Mississippi River drainage basin which covers 41% of the USA's territory. More specifically this peak is in the Rocky Mountains Range, Sawatch Range, Southern Rocky Mountains Range.
The Indo-European tribe called the Aryans invaded and conquered the Indus Valley Civilization, but many scholars believe that the collapse of the Indus Valley Civilization was caused by climate change.