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  1. Which of the following is/are characteristic of a depression in the southern hemisphere?
    I. It is a mass of air whose isobars form an oval or circular shape
    II. Pressure is high in the centre and decreases towards the outside
    III. Air moves anti-clockwise

    2. A.

     I only
    B.

     II only
    C.

     I and III
    D.

     All three

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    Answer : Option A

    Explanation :

    Depression in the southern hemisphere is a mass of air whose isobars form an oval or circular shape. In the southern hemisphere, the circular movement of winds is in a clockwise direction. Depressions are rarely stationary and tend to follow definite tracks. They are most influential over the ocean spreads and they weaken over land areas.

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