give reasons for the following
a) A polar bear has white furs
b) Siberian crane visits Asian countries during extreme winter season.
c) Toucan can crack the hard shell of nuts.
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1.polar bears have white fur because they live in an very cold habitat. this white fur helps them to remain undetected by the hunters and it also helps them to catch their prey.
2. siberian cranes do so because they have to cope up with cold climate and shortage of food.
3.Because it has developed a hard,big and sharp beak to squash the nut
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