SSC Geography Sample Paper NCERT Sample Paper-1

  • question_answer
    Identify the correct sequence of the given process regarding rainfall

    A)  Unsaturated air, condensation, dew point, precipitation

    B)  Condensation, dew point, saturated air, precipitation

    C)  Unsaturated air, condensation, saturated air, dew point, precipitation

    D)  Unsaturated air, dew point, condensation, precipitation

    Correct Answer: D

    Solution :

    [d] Unsaturated air has less than 100% relative humidity; i.e. its actual temperature is higher than its dew point. The dew point (dew point temperature or dew point) is the temperature at which dew forms and is a measure of atmospheric moisture. It is the temperature to which air must be cooled at constant pressure and water content to reach saturation. Condensation is the change of water from its gaseous form (water vapour) into liquid water. Condensation generally occurs in the atmosphere when warm air rises, cools and loses its capacity to hold water vapour. As a result, excess water vapour condenses to form cloud droplets. In meteorology, precipitation is any product of the condensation of atmospheric water vapour that falls under gravity. The main forms of precipitation include drizzle, rain, sleet, snow, graupel and hail.

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