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Which of the following describes the characteristics of stable air?

  1. Good visibility and showery precipitation

  2. Poor visibility and steady precipitation

  3. High winds and stormy conditions

  4. Good visibility with turbulent conditions

The correct answer is: Poor visibility and steady precipitation

Stable air is characterized by a well-defined temperature gradient that inhibits vertical motions, leading to consistent and steady weather conditions. When air is stable, it tends to resist upward movement, meaning that clouds, if they form, are typically layer-like and can produce steady precipitation rather than intermittent showers. This scenario often results in poor visibility due to low-hanging clouds or fog that can accompany steady rain. In the context of stable air, the conditions support uniform temperature and moisture distribution, which leads to less turbulence and fewer sudden weather changes. The other options describe conditions that are more associated with unstable air, which is characterized by turbulence, good to moderate visibility but often with abrupt weather shifts.