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ই-বুকগুলো ডাউনলোড করার জন্য ই-বুকের উপর ক্লিক করুন।

অ্যাপসগুলো ডাউনলোড করার জন্য অ্যাপসগুলোর উপর ক্লিক করুন।

BCS Oracle Mental Ability

19. Necessity of Maintaining Ecological Balance 
(a) What does environment refer to?
(b) What are the main elements of environment?
(c) What is the relation among different elements?
(d) What will happen if this relationship is disturbed?
(e) What is the necessity of maintaining ecological balance?
(f) Do you have any idea about its solution?
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The world is full of different things. All those things make up our environment. The environment refers to the air, water and land in which people, animals and plants live. So, human beings, animals, plants, air, water and soil are the main elements of the environment. Storm, cyclones, earthquakes and other natural forces are the parts of environment too. Climate is also related to environment. All these things are interrelated. The way in which people, animals and plants are related to one another in their surrounding is known as ecology. It is a complex web that links all the elements of environment in the biosphere. All these things hang together. The system is in a steady state of dynamic balance, which means that by altering any one part of the web one can affect all the other parts. For example, the destruction of forests may have serious ecological consequences on humans and animals. The world is producing million tons of domestic rubbish. The disposal of various kinds of wastes is polluting the environment. So it is difficult to protect our environment from being polluted. If we don’t take any step to protect our environment immediately the world will be uninhabitable in future like a desert. We can protect our environment by taking some initial steps such as stopping wasting water, stopping using ground water excessively, stopping destroying forest, stopping to using excessive toxic insecticides in the farmlands etc. It is the responsibility of human beings to make the environment clean and danger free. Besides, we should check the cause of greenhouse effect and plant more and more trees.

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একাদ্বশ ও দ্বাদশ শ্রেণীর আইসিটি ও অর্থনীতি হ্যান্ডনোট সহকারে পড়ানো হয়। যোগাযোগ- মো: মিজানুর রহমান (সুজন); বি.এস.এস অনার্স (১ম শ্রেণী); এম.এস.এস (অর্থনীতি+আইসিটি); প্রভাষক, গংগাচড়া কলেজ, গংগাচড়া, রংপুর। পড়ানোর স্থান- গংগাচড়া মহিলা কলেজের পাশে এবং সরকারি বেগম রোকেয়া কলেজ, রংপুর এর পাশে।

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