Final answer:
Changes in air pressure can be influenced by varying weather conditions, altitude, and temperature. High pressure is often associated with sunny weather, while low pressure signals stormy weather. Changes in temperature and altitude also affect air pressure, with hot air and high altitudes usually reducing it.
Step-by-step explanation:
The changes in air pressure with time at a particular locality can be explained by variations in weather conditions, altitude, and temperature. When weather conditions change, they can affect air pressure. For example, a high pressure system usually symbolizes clear, sunny days, whereas a low pressure system often brings stormy, rainy weather. Furthermore, as altitude increases, the air pressure decreases because the number of molecules in the air decreases. Lastly, as temperature increases, air pressure can decrease since hot air rises, often creating a low pressure area.
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