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igomit [66]
3 years ago
7

What are air masses, and how do they work? Don't copy and paste.

Biology
1 answer:
kozerog [31]3 years ago
6 0

What are Air Masses:  They large volumes of air that have generally the same temperature and pressure.

How they work: One is heated by an electrical current, the other is not. As air flows across the heated wire, it cools down.

Example of an Air Mass: The air masses in and around North America include the continental arctic, maritime polar, maritime tropical, continental tropical, and continental polar air masses. Air is not the same everywhere.

Fact: Unstable air masses have different temperatures and pressures.

How they are formed: An air mass forms whenever the atmosphere remains in contact with a large, relatively uniform land or sea surface for a time sufficiently long to acquire the temperature and moisture properties of that surface.

*** <em>The Earth's major air masses originate in polar or subtropical latitudes.</em>

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Sternal angle marks the joint between the sternum and the 2nd rib.

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The sternum has attachments of a total of 10 ribs and clavicle. The clavicle and the first rib joins in the Manubrium sterni, and the 3rd to 10th rib joins in the body of sternum. The 2nd rib joins in a facet which is partly in Manubrium sterni and partly in body of sternum. This place id also called the sternal angle. So the sternal angle marks the joint of 2nd rib to sternum.

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