UPSC Geography The origin and evolution of the earth Question Bank Universe / Sun / Planets / Earth

  • question_answer Match the following
    List-I (Features) List-II (Dates)
    A. Vernal equinox 1. December 22
    B. Summer solstice 2. September 23
    C. Winter solstice 3. March 20
    D. Autumnal equinox 4. June 22
            

    A)                                 A-3       B-4       C-1       D-2

    B)             A-3       B-1       C-2       D-4

    C)             A-3       B-1       C-4       D-2

    D)             A-2       B-4       C-1       D-3

    Correct Answer: A

    Solution :

     As Earth revolves around the Sun there are two moments each year when the Sun is exactly above the equator. These moments are called equinoxes which occur around March 20 or 21. The summer solstice occurs during the hemisphere's summer. This is the northern solstice in the northern hemisphere and the southern solstice in the southern hemisphere. Depending on die shift of the calendar, the summer solstice occurs sometime between June 20 and June 22 in the northern hemisphere and between December 20 and December 23 each year in the southern hemisphere. The winter solstice (or hibernal solstice), also known as midwinter, is an astronomical phenomenon marking die day with the shortest period of daylight and the longest night of the year. In the Northern Hemisphere this is the December solstice and in the Southern Hemisphere this is the June solstice. It occurs on 22 September in northern hemisphere and 20 March in southern hemisphere. Autumnal equine occurs on September 23.

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