Why do high mountain areas have lower temperature than plains?

Correct answer: Higher altitude

Direct answer: A, higher altitude. As elevation increases, temperature generally decreases, so high mountain areas are commonly cooler than nearby plains. Air pressure is lower at height, and the atmosphere is heated mainly from the Earth’s surface; this helps explain the usual fall of temperature with altitude. A is the relevant climatic control. B, more markets, has no necessary effect on air temperature. C, more roads, also does not explain the normal vertical temperature difference. D, less language, is unrelated to climate. Local conditions such as slope, aspect, cloud, and winds can modify the exact temperature, but they do not overturn the basic school-level rule. Memory cue: climb higher, temperature generally becomes lower.