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কচুশাকে কোন ধাতু থাকে?
OpenPreparation asked 2 months ago
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নিউক্লিয়ার ফিউশনের জ্বালানি কী?
OpenPreparation asked 2 months ago
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হৃৎপিণ্ডের আবৃতকারী পর্দার নাম কী?
OpenPreparation asked 2 months ago
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জিনের রাসায়নিক গঠন কী?
OpenPreparation asked 2 months ago
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মানুষের দাঁতের সবচেয়ে কঠিন অংশের নাম কী?
OpenPreparation asked 2 months ago
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পর্যায় সারণির মূল ভিত্তি কী?
OpenPreparation asked 2 months ago
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প্রেসার কুকারে রান্না তাড়াতাড়ি হয় কেন?
OpenPreparation asked 2 months ago
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বিস্ফোরক পদার্থ টিএনটি কী?
OpenPreparation asked 2 months ago
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অ্যালুমিনিয়ামের আকরিক কী?
OpenPreparation asked 2 months ago
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স্ক্রু-গজের স্ক্রুয়ের সরণকে কী বলা হয়?
OpenPreparation asked 2 months ago
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Which country tops the Democracy Index 2024 by the Economic Intelligence Unit (EIU)?
OpenPreparation asked 2 months ago
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Position of Bangladesh in the Global Terrorism Index (GTI) 2025—
OpenPreparation asked 2 months ago
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According to 2024 IQAir World Air Quality Report the most polluted country in 2024 was—
OpenPreparation asked 2 months ago
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Who invented BiVACOR?
OpenPreparation asked 2 months ago
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What is BiVACOR?
OpenPreparation asked 2 months ago
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On what date Egypt held Arab summit to discuss plans to rebuild the Gaza Strip?
OpenPreparation asked 2 months ago
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On what date did the USA suspend all military aid to Ukraine?
OpenPreparation asked 2 months ago
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Which US company successfully landed its spacecraft on the moon on 2 March 2025?
OpenPreparation asked 2 months ago
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Which country is involved in elephant diplomacy?
OpenPreparation asked 2 months ago
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Recently which militant group hijacked a train in the southwestern Pakistani province of Balochistan?
OpenPreparation asked 2 months ago
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