alleryവരണ്ട വായുവിൽ ഓക്സിജന്റെ ഏകദേശ ശതമാനം എത്രയാണ്?
A12 ശതമാനം
B15 ശതമാനം
C18 ശതമാനം
D21 ശതമാനം
Answer & Solution
Correct answer: D. 21 ശതമാനം
ഭൂമിയുടെ വരണ്ട അന്തരീക്ഷ വായുവിന്റെ ഏകദേശം 20.95 ശതമാനം ഓക്സിജനാണ്.
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