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 \nAll the weather we experience happens becauseof air masses,which are like giant bubbles of air movingaround the troposphere.The troposphere is the bottomlayer of Earth's atmosphere.This layer extends fromEarth's sea level to roughly 6.2 miles(10 km)into thesky.The different surfaces and temperatures on ourplanet affect the air contained within the troposphere.Air masses formed over warm water are different fromair masses formed over cold,dry land.The boundarybetween two air masses is called a front,and when twoair masses meet,the weather changes.  \nIf you've ever looked out the window while on a large passenger airplane,you might have noticed a layer of clouds.Youre actually looking down atthe troposphere,where all our weather happens!  \n5  \n# STUDYINGEARTH'S ATMOSPHERE\n\nMeteorology is the study of Earth's atmosphere andits effect on weather.The scientists who work in this fieldare called meteorologists.They want to know how andwhy certain weather events happen so they can betterpredict them.  \nChanges in weather occur when different airmasses meet.So,tracking where air masses form,","cbCaivpaYGXdWfhj","https://ap.wps.com/l/cbCaivpaYGXdWfhj","pdf",3505164,32,"English","# Weather on Earth\n## Studying Earth’s Atmosphere\n## What Makes an Air Mass?\n## Labeling Air Masses\n## When Air Masses Meet: Fronts\n## Cold Fronts\n## Warm Fronts\n## Other Types of Fronts\n## Predicting the Weather\n## It’s All in the Air\n## Glossary\n## Index","[{\"question\":\"What causes the weather we experience?\",\"answer\":\"Weather happens because air masses move through the troposphere. Differences in temperature and surfaces where air masses form shape their behavior.\"},{\"question\":\"What is a front?\",\"answer\":\"A front is the boundary between two air masses. When two air masses meet at a front, the weather changes.\"},{\"question\":\"How does studying meteorology help with weather prediction?\",\"answer\":\"Meteorologists study Earth’s atmosphere and how it affects weather. By understanding how and why weather events occur, they can track air masses and improve prediction.\"}]","Air masses and fronts - What's the weather - read and learn | PDF",1791868342,81]