Social Sciences, asked by sanidulislam3181, 1 month ago

ক) কি কি কাৰণত আমাৰ দেশত অক্সিজেনৰ মাত্রা হ্রাস পাই আহিছে ?

Answers

Answered by rishitagoswami15

4

Answer:

১) অধিক পৰিমাণৰ গছ-গছনি কটাৰ ফলত

২) উদ্যোগ কাৰখানা আদি অধিক পৰিমানে নিৰ্মাণ হোৱাৰ বাবে

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