গাছ কি রাতে অক্সিজেন গ্রহণ করে আর দিনে অক্সিজেন ছাড়ে?
Engr. Saddam Hossain
December 22, 2025
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আমরা ছোটবেলা থেকেই শুনে আসছি—গাছ আমাদের অক্সিজেন দেয়। কথাটি পুরোপুরি ভুল নয়, তবে বাস্তবতা একটু বেশি বিজ্ঞানভিত্তিক ও সূক্ষ্ম। কারণ গাছও...
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