Question

ਆਕਸੀਜਨ ਦਾ ਪ੍ਰਮਾਣੂ ਪੁੰਜ ਕਿੰਨਾ ਹੁੰਦਾ ਹੈ ? / ​

Answer 1

amount of oxygen on earth is 21% .

Explanation:

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Answer 2

Answer:

16 is correct answer

Explanation:

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