पक्षियों को बहुत ऊंचाई पर उड़ते समय सांस की परेशानी क्यों नहीं महसूस होती? - Study24x7
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Gajendra Rathore
18 Dec 2019 02:23 PM study24x7 study24x7

पक्षियों को बहुत ऊंचाई पर उड़ते समय सांस की परेशानी क्यों नहीं महसूस होती?

A

उनके फेफड़े बहुत बड़े होते है

B

वे निष्क्रियता के साथ उड़ते है

C

 उनमें अतिरिक्त वायु-कोश होते है

D

वे कम ऑक्सीजन का प्रयोग करते है

SSC
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