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प्रश्न
______ present in the air is needed for respiration.
विकल्प
Oxygen
Helium
MCQ
रिक्त स्थान भरें
उत्तर
Oxygen present in the air is needed for respiration.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
______ present in the air is needed for respiration.
Oxygen
Helium
Oxygen present in the air is needed for respiration.