পরিবেশ, তার সম্পদ এবং তাদের সংরক্ষণ (প্রশ্ন-উত্তর পর্ব-০২)
1. পৃথিবীর বায়ুমণ্ডলে আয়ন হিসেবে কার্বন-ডাই-অক্সাইড এর পরিমাণ কত?
♦ 0.04%
2. পরিবেশ থেকে জীবদেহে এবং জীবদেহ থেকে পরিবেশে মৌলের চক্রবৎ আবর্তনকে কি বলে?
♦ পরিপোষক চক্র বা ভূরাসায়নিক চক্র।
3. জীবজ উপাদানে নাইট্রোজেন প্রোটিন , অ্যামিনো অ্যাসিড ও কি রূপে থাকে?
♦ নিউক্লিক অ্যাসিড।
4 . কোন সায়ানোব্যাকটেরিয়া N2 সংবন্ধন করে?
♦ নস্টক (Nostoc) ।
5. ওজন হিসেবে প্রোটিনে নাইট্রোজেনের পরিমাণ কত শতাংশ?
♦ 16%
6. বিদ্যুৎপাতের সময় বায়ুর নাইট্রোজেন অক্সিজেনের সঙ্গে যুক্ত হয়ে কি গঠন করে?
♦ নাইট্রিক অক্সাইড।
7. যে – পদ্ধতিতে অ্যামোনিয়াম আয়ন জারিত হয়ে নাইট্রাইট বা নাইট্রেটে রূপান্তরিত হয় তাকে কি বলে?
♦ নাইট্রিফিকেশন।
৪. নাইট্রিক অক্সাইড থেকে নাইট্রোজেন ডাইঅক্সাইডের রূপান্তরকরণে কোন গ্যাসের প্রয়োজন হয়?
♦ অক্সিজেন।
9. লেগহিমোগ্লোবিন কোন ধরনের উৎসেচক?
♦ নাইট্রোজিনেজ।
10 . কোন পদ্ধতিতে NH4 নাইট্রেটে পরিণত হয়?
♦ অ্যামোনিফিকেশন।
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