അന്തരീക്ഷത്തിൽ കാണപ്പെടുന്ന വാതകങ്ങളെ അവയുടെ അളവിന്റെ അവരോഹണ ക്രമത്തിൽ ക്രമീകരിക്കുക?
1. നൈട്രജൻ
2. ആർഗൺ
3. ഓക്സിജൻ
4. CO2
A1-2-3-4
B1-3-2-4
C4-3-2-1
D3-2-1-4
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