<Dl> <Dd> <Ul> <Li> g is the standard gravity </Li> <Li> ρ is the density </Li> <Li> z is the altitude </Li> <Li> P is the pressure </Li> <Li> R is the gas constant </Li> <Li> T is the thermodynamic (absolute) temperature </Li> <Li> m is the molar mass </Li> </Ul> </Dd> </Dl> <Dd> <Ul> <Li> g is the standard gravity </Li> <Li> ρ is the density </Li> <Li> z is the altitude </Li> <Li> P is the pressure </Li> <Li> R is the gas constant </Li> <Li> T is the thermodynamic (absolute) temperature </Li> <Li> m is the molar mass </Li> </Ul> </Dd> <Ul> <Li> g is the standard gravity </Li> <Li> ρ is the density </Li> <Li> z is the altitude </Li> <Li> P is the pressure </Li> <Li> R is the gas constant </Li> <Li> T is the thermodynamic (absolute) temperature </Li> <Li> m is the molar mass </Li> </Ul> <Li> g is the standard gravity </Li>

Which of the following statements is true for the energy balance of the earth's surface