Strange Life

সাধাৰণ অৰ্থত ক’বলৈ হ’লে আমি আমাৰ চাৰিওফালে যি দেখিছো সেই সকলোবিলাকেই আমাৰ পৰিবেশ। বায়ু, বিভিন্ন জীৱ-জন্তু, গছ-গছনি, মাটি, পানী, পৰ্বত-পাহাৰ আদি আমাৰ চাৰিওফালে আছে। এইবোৰৰ উপৰিও আমাৰ ঘৰ-দুৱাৰ, বিভিন্ন অনুষ্ঠান-প্ৰতিষ্ঠান, দোকান-পোহাৰ, হাট-বজাৰ, কল-কাৰখানা আদিও আমাৰ চৌদিশে আছে। এই সকলোবোৰ বস্তুৱেই আমাৰ পৰিবেশৰ ভিতৰুৱা। চমুকৈ ক’বলৈ গ’লে কোনো এটা জীৱৰ বাসভূমিৰ কেউদিশৰ অৱস্থাকেই পৰিবেশ বুলি কোৱা হয়। আমাৰ পৰিবেশত থকা মুখ্য উপাদানবোৰ হ’ল বায়ু, পানী আৰু মাটি। এই তিনিবিধ ভৌতিক বা অজৈৱিক উপাদানৰ বাহিৰেও পৰিবেশত আৰু কিছুমান ভৌতিক উপাদানৰ বৰঙণি আছে। তেনেবোৰ উপাদানৰ ভিতৰত উষ্ণতা, পোহৰ আৰু বিকিৰণ, বায়ুৰ চাপ, মাধ্যাকৰ্ষণ শক্তি, বায়ুমণ্ডলত থকা বিভিন্ন ৰাসায়নিক উপাদান উল্লেখযোগ্য। কোনো এটা পৰিবেশত জীয়াই থকা জীৱসমূহেই হ’ল পৰিবেশৰ জৈৱিক উপাদান। কোনো এটা পৰিবেশৰ জীৱসমূহক উপাদান হিচাপে তিনিটা মুখ্য ভাগত ভগাব পাৰোঁ। (ক) উৎপাদক (খ) উপভোক্তা (গ) বিয়োজক (ক) উৎপাদক: সাম্প্ৰতিক সময়ত পৃথিৱীৰ পৰিবেশৰ অৱস্থা অতিশয় উদ্বেগজনক। লেতেৰা পানী, আৱৰ্জনা, কল-কাৰখানাৰ পৰা নিৰ্গত হোৱা বিষাক্ত ৰাসায়নিক দ্ৰব্য আদিয়ে আনকি বিশ্বৰ...

SOLID WASTE AND IT'S IMPACT ON ENVIRONMENT   Introduction: Any unwanted or discarded material from residential commercial, industrial, mining and agricultural activities that causes environmental problems may be termed as solid waste. Solid waste encompasses the highly heterogeneous mass discarded materials or throwaway from the urban community as well as the more homogenous accumulation of wastes generated by agriculture and industrial activities. CHARACTERIZATION OF WASTES Solid waste are characterize on the basis of following parameters • Their sources • By the types of wastes produced • By generation rates and composition. Accurate information in these areas is necessary in order to monitor and control existing waste management systems and to make regulatory, financial and institutional decisions. CHARACTERISTICS OF SOLID WASTES • Corrosive: these are wastes that include acids or bases that are capable of corroding mental containers, e.g. tanks• Ig...

Introduction:        Now a days cellular phones have become all in one communication and entertainment devices and play an important part in our daily life. Mobiles are likes the skin of one’s body. Cellular phones have their many uses and abuses as well. Uses:        The basic use of mobiles are for calling and messaging. People use cellular phones to surf the internet. Cellular phones are used as a medium of entertainment to watch movies, listen to music and play games. Using inbuilt GPS mobiles or cellular phones can be used for navigation purposes. These days’ cellular phones have excellent cameras and so people use their phone cameras for capturing awesome pictures. Abuses:        Youngsters get addicted to social networking sites and spend most of their valuable time online which negatively affects their studies. There are a lot of health hazards of cellular phones. Mobile phone...

Introduction :                           Friendship is one of the most precious gifts of life. A person who have true friends is lucky enough. Friendship makes life thrilling. It makes life sweet and a pleasant experience. Friendship is indeed, an assist in life. It leads us either to success or to doom. It completely depends on how we choose our friends. Why man need friends :                                          Man is a social being. He cannot live all alone. He needs someone to share his joy and sorrows equally. He needs to discuss his problems with someone who is faithful to him and who loves him. So a man needs a friend. A friendless man becomes a...