সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
What is the correct increasing order of abundance of the main components of air?
What is the correct increasing order of abundance of the main components of air?
- ক. nitrogen, oxygen and argon
- খ. nitrogen, argon and oxygen
- গ. oxygen, nitrogen and argon
- ঘ. argon, nitrogen and oxygen
সঠিক উত্তরঃ argon, nitrogen and oxygen
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Basic Information of Daily Science, Inventions and...