Class 9 Science Assignment Answer 2021 [18th Week Biggan Solution]

18th Week Class 9 Science Assignment Answer

Class 9 Science Assignment

Bismillahir Rahmanir Raheem, Class 9 Science Assignment Answer 2021 has been published for 18th week. You know that we are answering all the weekly assignments of each class. This time too he will be no exception. Today’s assignment or scheduled work has been decided in class 9. Where We will answer the assignment question of 18th week science of that class.

Class 9 science assignment 2021

Science is a very fun subject, by which we are acquainted with the modern age. Science is now used in everything from waking up in the morning to going to bed at night. Because when we wake up in the morning we first brush with toothpaste which is a scientific discovery. Then when we go to sleep at night, from watching TV, to running a fan on the head, to AC, everything is with us. So it can be said that science has made our way easier. Knowing the contribution of science in creating all these things and creating many new things, science subjects have been given in class 9. The subject of class 9 science is compulsory only for the students of science branch. Which is not in the humanities or commercial branch. We are ready to answer the assignment of the 18th week of that science subject.

18th week Class 9 science assignment Answer 2021

Class 9 gave the assignment for the 18th week, where the science subject was assigned. This is the second time that a class 9 science subject assignment has been given. Earlier in the 1st & 5th week he had given an assignment on the subject. Where as usual was the first chapter. But a lot has changed this time, because this is the second time.

Assignment official website:

৯ম নবম শ্রেণীর ১৮ তম সপ্তাহের বিজ্ঞান এসাইনমেন্ট উত্তর

প্রজ্ঞা তার বাবার সাথে বুড়িগঙ্গা নদীতে নৌকায় করে বেড়াতে গেল। দাদা বাড়িতে যাওয়ার সময় নদীর পাড়ের যে ছবি তার মনে গেঁথে ছিল তার সঙ্গে এই মুহূর্তে দেখা চিত্রের সঙ্গে কোন মিল খুঁজে পেল না। নদীর কোন পাড় নেই, আছে অসংখ্য দালান কোঠা, দোকান পাট, শিল্প কারখানা। পানির রঙ একেবারেই কালাে, দুর্গন্ধময়। যে বিশুদ্ধ বাতাস নেবার উদ্দেশ্যে সে বের হয়েছিল, উল্টো দুর্গন্ধে তার দম বন্ধ হয়ে আসতে লাগলাে। প্রজ্ঞার খুব মন খারাপ হল। দেশের এত বড় নদীর এই দুরবস্থা।

ক) বুড়িগঙ্গা নদীর পানি মাছসহ অন্যান্য জীব বসবাসের জন্য উপযুক্ত কি না? ব্যখ্যা কর।
খ) বুড়িগঙ্গার পাড়ে যদি কোন ফসলী জমি থাকে তাহলে তার সেচ কার্যক্রম কি বুবুড়িগঙ্গার পানি দিয়ে করা সম্ভব? তােমার উত্তরের পক্ষে যুক্তি দাও।
ঘ) বুড়িগঙ্গা কে স্বাভাবিক অবস্থায় ফিরিয়ে আনতে স্থানীয় জনগনের সহায়তায় তুমি কি করতে পারাে? উপস্থাপন কর।

📣 সকল শ্রেণীর ও সপ্তাহের অ্যাসাইনমেন্টের উত্তর, দ্রুত পেতে আমাদের গ্রুপে জয়েন করুন [📎 এখানে ক্লিক করে 🎯]

Class 9 BGS Assignment Answer

Some Instructions Class Nine Science Assignment:

Can take the help of textbooks. Be careful in testing work. Contaminated water cannot be drunk for testing purposes.

Evaluation Rubrics for class 9 biggan assignment

Very good:

1. Present accurate information in all cases.
2. The test is completely accurate.
3. A full understanding of the depth of the content.
4. Full ability to identify problems.


1. Presenting accurate information in most cases.
2. Most of the tests are accurate.
3. Most understand the depth of the content.
4. Able to identify most problems.


1. Present accurate information in several cases.
2. The test is half correct.
3. Partial understanding of the depth of the content.
4. Able to identify a few problems.

Progress Required:

1. Unable to present accurate information.
2. The test is not accurate.
3. No depth of content.
4. Unable to identify problem.

Assignment Answer Class 9 Biggan 2021

In that episode we will find out what are the questions in the 18th week science assignment of class 9 and on which chapter. As can be seen from the chapter, in the 5th week, Class 9 gave the 2nd chapter of the science subject. Which is the title of the chapter “Water for Life”. Lesson 2, which is included in the syllabus, has 9 contents. Which is highlighted; 2.1.1 Aquaculture, sources, water requirements for aquatic plants, water standards, role of water in water recycling and environmental conservation, water purification, causes of water source pollution in Bangladesh, effects of water pollution on plants, animals and humans, global warming, water in Bangladesh Pollution prevention strategies and citizen responsibilities, threats to water sources in Bangladesh and creativity of water flow and international regulations.

Final words:

After trying for about 2 days, we were able to give Class 9 Science Assignment Answer. Which will help you to get good marks and prepare well before the exam. Stay with us to get answers to each week’s assignments.


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