সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
What is the name given to molten rocks that are erupted by a volcano?
What is the name given to molten rocks that are erupted by a volcano?
- ক. lava
- খ. slate
- গ. firestone
- ঘ. marble
সঠিক উত্তরঃ lava
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Basic Information of Daily Science, Inventions and...