পরিবেশ, তার সম্পদ এবং তাদের সংরক্ষণ (প্রশ্নোত্তর পর্ব-০৫)
1. কী কী কারণের জন্য অরণ্য ধ্বংস করে কৃষিজমি তৈরি করা হচ্ছে ?
> শিল্পায়ন ও নগরায়ণের জন্য ।
2. কী কী কারণের জন্য বনভূমি কেটে ধ্বংস করে ফেলা হচ্ছে ?
> জ্বালানি কাঠ এবং গৃহনির্মাণের জন্য কাঠ সংগ্রহের জন্য ।
3. ফ্লুওরাইডমিশ্রিত জলপান করলে কী রোগ দেখা যায় ।
> ফ্লুওরোসিস রোগ দেখা যায় ।
4. জলদূষণঘটিত একটি রোগের নাম লেখো।
> আর্সেনিকোসিস ।
5. পৃথিবীর কত পরিমাণ অংশ জলাভূমি দ্বারা ঢাকা ?
> ছয় শতাংশ ।
6. জলাভূমির মধ্যে কোন্ কোন্ অঞ্চল অন্তর্ভুত ?
> জলা , বিল , পাঁকপূর্ণ জমি এবং অন্যান্য জলাশয় অন্তর্ভুক্ত ।
7. মাইট ব্যতীত একটি প্রাণীর নাম করো যা হাঁপানির প্রাকৃতিক কারণ ।
> আমেরিকান আরশোলা (Periplaneta americana) ।
8. PVC- এর পুরো নাম লেখো ।
> পলি ভিনাইল ক্লোরাইড ।
9. ইউরেনিয়াম ভেঙে কী কী পদার্থ উৎপন্ন হয় ?
প্রথমে রেডিয়াম ও পরে রেডন উৎপন্ন হয় ।
10. জলাভূমিকে প্রাকৃতিক বৃদ্ধ বলার কারণ কী ?
জলাভূমি পৃথিবীর দূষক পদার্থগুলিকে পরিষ্কার করে পৃথিবীকে সুস্থ ও স্বাভাবিক রাখে ।
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