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Air — Social Science STD 7 — Question

Rajasthan BoardEnglish MediumSTD 7Social ScienceAir5 Marks
Question
How does air pressure get affected due to layers of atmosphere?
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Answer

  1. The pressure falls rapidly as we go up the layers of the atmosphere.
  2. The air pressure is highest at the sea level and decreases with height.
  3. Horizontally, the distribution of air pressure is influenced by temperature of air at a given place.
  4. In areas where temperature is high, the air gets heated and thus rises.
  5. This creates a low-pressure area, which leads to cloudy skies and wet weather.
  6. In areas with low temperature, air is cold and pressure is heavy.
  7. Heavy air sinks and creates a high-pressure area.
  8. High pressure is associated with clear and sunny skies.
  9. Air moves from high-pressure to low pressure areas.

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