SCIENCE
EARTH SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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An immediate change of air pressure
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High pressure
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A change of wind direction
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Warm and cold air mixing
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Detailed explanation-1: -High pressure means the air is heavy, and it sinks. Sinking air makes the environment very stable. Under high pressure you can generally expect sunny skies and calm weather. Low pressure is what causes active weather.
Detailed explanation-2: -In an anticyclone (high pressure) the winds tend to be light and blow in a clockwise direction (in the northern hemisphere). Also, the air is descending, which reduces the formation of cloud and leads to light winds and settled weather conditions.
Detailed explanation-3: -A: “High pressure” and “low pressure” correspond to geographical locations where the surface pressure of the atmosphere is higher or lower than average. Although air is much less dense than water, it still has mass, and surface pressure is simply caused by the weight of the atmosphere pressing down on the Earth.
Detailed explanation-4: -Atmospheric pressure is an indicator of weather. When a low-pressure system moves into an area, it usually leads to cloudiness, wind, and precipitation. High-pressure systems usually lead to fair, calm weather.