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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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Characteristics of disasters

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Characteristics of disasters:

1.As the disaster occurs suddenly, it cannot be predicted.

2.Hence, precautions are not possible. 

3.Hiuge losses to the property occur in the area of disaster. 

4.There are long term effects on society due to incidences of life and property loss.

5.Various area of life like economics, social, cultural, political law and administration etc. are affected by it.

6.The life in the area of disaster disturbs totally.

7.There is loss of life and properly of the people in distress. 

8.None of the the different disaster are similar. period of each disaster is not same. 

9.Some disaster are short term where as some are long term.

10.Reasons behind each disaster are also different.

11.Depending upon the nature of disaster it can be determined that which component of the environment will be affected more.

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