Which of these terms best describes a rural community? Select the two correct responses
A. Skyscrapers
B. Many outdoor activities
C. Disconnected from natural systems
D. High-density human population
E. Open country in

On a spring day, a middle-latitude city (about 40? north latitude) has a surface (sea-level) temperature of 10 ? c. if vertical soundings reveal a nearly constant environmental lapse rate of 6.5 ? c per kilometer and a temperature at the tropopause of –55 ? c, what is the height of the tropopause?