Which of the following is a characteristic of low pressure systems?

Low pressure systems are typically associated with rising air, which often leads to cloud formation and precipitation. The characteristics of these systems generally include turbulent weather conditions, such as increased wind speeds, storminess, and unsettled weather patterns. When a low pressure system is present, the air is less stable, which can result in dynamic and unpredictable weather, including thunderstorms and heavy rainfall.

In contrast, the other options describe conditions more commonly associated with high pressure systems, where air descends, leading to clearer skies, stable air, and generally better flying conditions with minimal cloud cover. Thus, the correct choice highlights the inherent weather dynamics and challenges presented by low pressure systems.