Migratory birds leave their place at particular time duration and migrate to other places . give scientific reasons
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Explanation:
Migratory birds leave their place at particular time duration and migrate to other places. ... Migration carries high costs in predation and mortality, including from hunting by humans, and is ... Give periodic trends in valence of elements of oxides and hydrides.
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25
Explanation:
Actually they are always flys in the search of right temperature for them.Let suppose they like warm weather and India have summers season so, they stay their and after that when winter starts to comes they fly of from here and went to other place were there is summers.
HOPE YOU UNDERSTAND......
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