Unseen Comprehension-69 Alim (Population explosion)
Population explosion. জনসংখ্যা বিস্ফোরণ। Population explosion is a constant threat to our environment and existence. The populatio...Read More
Unseen Comprehension-68 Alim (AIDS)
AIDS. এইডস। AIDS is one of the major threats on existence of mankind on earth. It has broken out in an epidemic form in many parts o...Read More
Unseen Comprehension-67 Alim (Book)
Book. বই। Books are the medium through which we talk with the mighty minds of old. Books tell us about their activities, what they s...Read More
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