Answers

2016-04-22T14:54:08+05:30
Winter is the coldest season of the year
it comes after rainy season
Winter is caused by the axis of the earth in that hemisphere being oriented away from the Sun
there will be snow fall in winter season
many birds migrate in this season
it starts form November and ends in February 
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2016-04-22T14:55:52+05:30
⇒Winter  is the coldest season of the year in polar climates and temperate climates, between autumn and spring. 

It comes after rainy season.

Migration of birds can be seen during this season.

⇒Winter in either the Northern Hemisphere or the Southern Hemisphere is caused by the axis of the Earth in that hemisphere being oriented away from the Sun.

The season which usually lasts about three months.

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