Snowing is a kind of form which declines water and call it as on the weather the solid declines water.The snowflake growth is in a kind ofly currently the ice crystally again once have the cloud body of cold drop of water and this kind of cloud is called ice water to mix cloud.Lead cold drop of water to continuously evaporate into water vapor in this kind of cloud body, water vapor then and constantly and constantly flows out toward the ice crystal surface, again there the Ning Hua stop for a rest and make ice crystal to enlarge formation snowflake gradually.The snowflake floats to fall then and downward after become and meet with other snowflakes in the process of floating to fall and usually glue to attach to together and slowly grow up and meet to ascending current, light snow flower ascension of speed ratio heavy snow flower quick, the light snow flower catches up a heavy snow flower occurrence to glue connect, several through again and again and then become diameter to reach be like of several Li riceses cotton gradually again goose hair of snow regiment.When air in of ascending current to give not to live these snowflakes any further, they then float to drop down from the bank of clouds, if at this time low layer the temperature of the air is in below 0 ℃ , the snowflake lands a ground, and these be the Ai Ai white snow that people see.

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