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আদিম মানুষের সবচেয়ে বড় আবিস্কার কোনটি?

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<p class = "MsoNormal"><span style = "font - family: 'Vrinda','sans - serif';">প্রত্নপ্রস্তরযুগের</span> <span style = "font - family: 'Vrinda','sans - serif';">সবচেয়ে</span> <span style = "font - family: 'Vrinda','sans - serif';">বড়</span> <span style = "font - family: 'Vrinda','sans - serif';">আবিষ্কার</span>  -  -  <span style = "font - family: 'Vrinda','sans - serif';">আগুন</span> | <span style = "font - family: 'Vrinda','sans - serif';">জীবজগতে</span> <span style = "font - family: 'Vrinda','sans - serif';">একমাএ</span> <span style = "font - family: 'Vrinda','sans - serif';">মানুষ</span> <span style = "font - family: 'Vrinda','sans - serif';">ছাড়া</span> <span style = "font - family: 'Vrinda','sans - serif';">আর</span> <span style = "font - family: 'Vrinda','sans - serif';">সকলের</span> <span style = "font - family: 'Vrinda','sans - serif';">কাছেই</span> <span style = "font - family: 'Vrinda','sans - serif';">আগুন</span> <span style = "font - family: 'Vrinda','sans - serif';">একটা</span> <span style = "font - family: 'Vrinda','sans - serif';">ভয়ের</span> <span style = "font - family: 'Vrinda','sans - serif';">ব্যাপার</span> | <span style = "font - family: 'Vrinda','sans - serif';">আগুনের</span> <span style = "font - family: 'Vrinda','sans - serif';">ধারেকাছে</span> <span style = "font - family: 'Vrinda','sans - serif';">কেউ</span> <span style = "font - family: 'Vrinda','sans - serif';">ঘেঁষতে</span> <span style = "font - family: 'Vrinda','sans - serif';">চায়</span> <span style = "font - family: 'Vrinda','sans - serif';">না</span> | <span style = "font - family: 'Vrinda','sans - serif';">আগ্নেয়গিরি</span> <span style = "font - family: 'Vrinda','sans - serif';">থেকে</span> <span style = "font - family: 'Vrinda','sans - serif';">যখন</span> <span style = "font - family: 'Vrinda','sans - serif';">দমকে</span> <span style = "font - family: 'Vrinda','sans - serif';">দমকে</span> <span style = "font - family: 'Vrinda','sans - serif';">আগুন</span> <span style = "font - family: 'Vrinda','sans - serif';">বেরিয়ে</span> <span style = "font - family: 'Vrinda','sans - serif';">আসে</span> <span style = "font - family: 'Vrinda','sans - serif';">বা</span> <span style = "font - family: 'Vrinda','sans - serif';">আকাশ</span> <span style = "font - family: 'Vrinda','sans - serif';">থেকে</span> <span style = "font - family: 'Vrinda','sans - serif';">যখন</span> <span style = "font - family: 'Vrinda','sans - serif';">বাজ</span> <span style = "font - family: 'Vrinda','sans - serif';">পড়ে</span> <span style = "font - family: 'Vrinda','sans - serif';">গোটা</span> <span style = "font - family: 'Vrinda','sans - serif';">একটা</span> <span style = "font - family: 'Vrinda','sans - serif';">গাছ</span> <span style = "font - family: 'Vrinda','sans - serif';">দাউ</span> <span style = "font - family: 'Vrinda','sans - serif';">দাউ</span> <span style = "font - family: 'Vrinda','sans - serif';">করে</span> <span style = "font - family: 'Vrinda','sans - serif';">জ্বলে</span> <span style = "font - family: 'Vrinda','sans - serif';">উঠে</span> <span style = "font - family: 'Vrinda','sans - serif';">বা</span> <span style = "font - family: 'Vrinda','sans - serif';">মাটি</span> <span style = "font - family: 'Vrinda','sans - serif';">ফুঁড়ে</span> <span style = "font - family: 'Vrinda','sans - serif';">জলন্ত</span> <span style = "font - family: 'Vrinda','sans - serif';">গ্যাস</span> <span style = "font - family: 'Vrinda','sans - serif';">আগুনের</span> <span style = "font - family: 'Vrinda','sans - serif';">ফোরার</span> <span style = "font - family: 'Vrinda','sans - serif';">মতো</span> <span style = "font - family: 'Vrinda','sans - serif';">ছিটকে</span> <span style = "font - family: 'Vrinda','sans - serif';">বেরোয়</span>  -  <span style = "font - family: 'Vrinda','sans - serif';">সব</span> <span style = "font - family: 'Vrinda','sans - serif';">জায়গাতেই</span> <span style = "font - family: 'Vrinda','sans - serif';">আগুনের</span> <span style = "font - family: 'Vrinda','sans - serif';">চেয়ারাটা</span> <span style = "font - family: 'Vrinda','sans - serif';">এমন</span> <span style = "font - family: 'Vrinda','sans - serif';">বুনো</span> <span style = "font - family: 'Vrinda','sans - serif';">আর</span> <span style = "font - family: 'Vrinda','sans - serif';">হিংস্র</span> <span style = "font - family: 'Vrinda','sans - serif';">আর</span> <span style = "font - family: 'Vrinda','sans - serif';">ভয়ংকর</span> <span style = "font - family: 'Vrinda','sans - serif';">যে</span> <span style = "font - family: 'Vrinda','sans - serif';">ভয়</span> <span style = "font - family: 'Vrinda','sans - serif';">পাওয়াটাই</span> <span style = "font - family: 'Vrinda','sans - serif';">স্বাভাবিক</span> | <span style = "font - family: 'Vrinda','sans - serif';">কিন্তু</span> <span style = "font - family: 'Vrinda','sans - serif';">এই</span> <span style = "font - family: 'Vrinda','sans - serif';">ভয়</span> <span style = "font - family: 'Vrinda','sans - serif';">পাওয়াটাকে</span> <span style = "font - family: 'Vrinda','sans - serif';">বশে</span> <span style = "font - family: 'Vrinda','sans - serif';">আনায়</span> <span style = "font - family: 'Vrinda','sans - serif';">দুজয়</span> <span style = "font - family: 'Vrinda','sans - serif';">সাহস</span> <span style = "font - family: 'Vrinda','sans - serif';">মানুষের</span> <span style = "font - family: 'Vrinda','sans - serif';">হয়েছিল</span> | <span style = "font - family: 'Vrinda','sans - serif';">এ</span> <span style = "font - family: 'Vrinda','sans - serif';">এক</span> <span style = "font - family: 'Vrinda','sans - serif';">বিরাট</span> <span style = "font - family: 'Vrinda','sans - serif';">কৃতিত্ব</span> |</p>

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