alleryআৰ্দ্ৰভূমি সম্পৰ্কীয় ৰামচাৰ সন্মিলন কোন বছৰত স্বাক্ষৰিত হৈছিল?
A1951
B1971
C1961
D1981
Answer & Solution
Correct answer: B. 1971
কেস্পিয়ান সাগৰৰ পাৰৰ ইৰাণৰ ৰামচাৰ চহৰত 1971 চনত এই সন্মিলন স্বাক্ষৰিত হৈছিল।
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