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The rest of this section will be devoted to four types of fronts. Three of these fronts move and one is stationary. With cold fronts and warm fronts, the air mass at the leading edge of the front gives the front its name. In other words, a cold front is right at the leading edge of moving cold air and a warm front marks the leading edge of moving warm air.
When two air masses meet together, the boundary between the two is called a weather front. At a front, the two air masses have different densities, based on temperature, and do not easily mix. One air mass is lifted above the other, creating a low pressure zone. If the lifted air is moist, there will be condensation and precipitation. Winds are common at a front. The greater the temperature difference between the two air masses, the stronger the winds will be. Fronts are the main cause of stormy weather.
hope this helps lol :)
The United States' dependence on oil has long influenced its foreign policy. ... Coal is the main energy source driving the revolution in its beginning years. In the mid-1800s, kerosene produced from refined crude oil begins to make its way onto the ... Oil output in Iran drops from more than five million barrels a day to zero
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sorry I think you should go to the section where people speak your language
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