Which of the following bio-element is present in highest percentage in living organisms?
مندرجہ ذیل میں سے کون سا بائیو عنصر زندہ حیاتیات میں اعلی فیصد میں موجود ہے؟
Answer: Oxygen
Explanation
Oxygen is the most abundant bio-element in living organisms.
It mainly due to its presence in water and organic molecules.
It makes up about 65% of the human body by mass.
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