<ul><li>There are three air masses of different tempter colder air, cool air, and warm air. </li></ul><ul><li>Stationary  ...
<ul><li>A. Cold front can advance rapidly. Thunderstorms often form as warm air is suddenly lifted up over the cold air. <...
<ul><li>B. Warm air slides over colder air along warm fronts, forming a boundary with gentle slope. This can lead to hours...
<ul><li>C. Colder air forces warm air upward, forming and occluded front that close off warm air from the surface. </li></ul>
<ul><li>D .  A stationary front results when neither cold air nor warm air advances . </li></ul>
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period 7 group 3

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period 7 group 3

  1. 2. <ul><li>There are three air masses of different tempter colder air, cool air, and warm air. </li></ul><ul><li>Stationary front occurs when boundary between air masses stop advancing. </li></ul><ul><ul><li>They stay in one place for several days </li></ul></ul><ul><ul><li>They drawn a weather map with alternating red and blue lines </li></ul></ul>
  2. 3. <ul><li>A. Cold front can advance rapidly. Thunderstorms often form as warm air is suddenly lifted up over the cold air. </li></ul>
  3. 4. <ul><li>B. Warm air slides over colder air along warm fronts, forming a boundary with gentle slope. This can lead to hours, if not days, of wet weather </li></ul>
  4. 5. <ul><li>C. Colder air forces warm air upward, forming and occluded front that close off warm air from the surface. </li></ul>
  5. 6. <ul><li>D . A stationary front results when neither cold air nor warm air advances . </li></ul>

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