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The outer surface of a beaker containing ice cubes becomes wet in short while - Give scientific reason.

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Question  The outer surface of a beaker containing ice cubes becomes wet in short while. Answer  When ice cubes are placed in a beaker, ice starts melting.  The heat required for melting is absorbed from the surrounding air and also from the beaker to some extent.  Hence, the temperature of the air and beaker falls.  The capacity of air to hold water vapour depends upon the temperature of the air, and this capacity decreases as the temperature decreases.  At a certain low temperature, the surrounding air becomes saturated with water vapour present in it.  As the temperature falls further, the air is unable to hold all the water vapour.  Hence, the extra water vapour starts condensing on the cold outer surface of the beaker in the form of minute drops.  Therefore, The outer surface of the beaker containing ice cubes becomes wet in a short while.
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Disaster Information

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 Disaster

                                      Do you know: Disaster

INFORMATION:

Some basics points

                               Variously dangerous events occur many times in the environment. Those are called as Disaster. Some of the main natural disasters are floods, wet and dry famine, cyclone, earthquakes, volcanoes, etc. These are 'all of a sudden' troubles to the mankind. such events cause sudden changes in the environment and thereby cause the damage to it. Environment is also damaged due to use of natural resources for our development. This leads to sudden disaster. Un expected to human. This can called man made disaster.        

                               United nations has defined the disaster as 'the sudden event that leads to the huge loss of life and property. words like huge and sudden are important in the definition. As the disaster occur suddenly, it cannot be predicted./ Hence, precautions are not possible. Huge losses to the property occur in the area of the disaster. There are long term effect on the society due to incidences of life and property loss. 
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