Multiple choice

If the weather office predicts “depression” over a certain area, it means

  1. atmospheric pressure in that area is lower than that in the surrounding areas

  2. low atmospheric pressure over a large area

  3. hot skies

  4. heavy weather causing a feeling of depression
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A Correct answer
Explanation

If the weather office predicts “depression” over a certain area, it means atmospheric pressure in that area is lower than that in the surrounding areas. A low-pressure area, low or depression, is a region where the atmospheric pressure at sea level is lower than that of surrounding locations. Low-pressure systems form under areas of wind divergence which occur in upper levels of the troposphere.

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