সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
What are the main constituents of biogas?
What are the main constituents of biogas?
- ক. butane and carbon-dioxide
- খ. methane and carbon-monoxide
- গ. methane and carbon-dioxide
- ঘ. ethylene and carbon-dioxide
সঠিক উত্তরঃ methane and carbon-dioxide
এ সম্পর্কিত আরো প্রশ্ন দেখুন
- Which gas in the atmosphere saves us from the UV rays of the sun?
- Every molecule of water contains-- Oxygen and --Hydrogen.
- Which one of the following is responsible for the depletion of ozone layer?
- Which of the following is a device for storing electric charge?
- Which of the following soils is very hard to cultivate?
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Basic Information of Daily Science, Inventions and...