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On which of the following days the "World Environment Day" is observed?

On which of the following days the "World Environment Day" is observed? Correct Answer 5th June

৫ জুন হচ্ছে বিশ্ব পরিবেশ দিবস। কিন্তু ১ জুন, ২৫ মে, এবং ১ এপ্রিল কোন দিবসের উল্লেখ নেই। সঠিক উত্তর - ৫জুন।

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