Fingerprints are unique for every person so they can be used as a form of identification
Well land locked countries will not be able to travel farther places quicker. Also they cant ship any thing over seas so trade.
Thermal energy is an equation of the state and the total energy contained in a system due to the random motions
Heat Heat is energy in transport, and it is not an equation of state. It is the energy transferred from one system to another that is not done by work
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