इनमें से जो ऊष्माक्षेपी नहीं है उस पर (√) का चिन्ह लगाइए
1).श्वसन क्रिया
2).लोहे के टुकड़े को पानी में डुबोना 3).मोमबत्ती का जलना
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Answer:
please write it in English so that I can understand that
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