Class 9 NCTB Text Book 2024

Class 9 text book

The National Curriculum and Textbook Board (NCTB) in Bangladesh is responsible for developing and publishing textbooks for primary and secondary education. As of my last knowledge update in January 2022, the NCTB provides textbooks for classes ranging from Class I to Class XII. These textbooks cover subjects such as Bengali, English, Mathematics, Science, Social Science, … Read more

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Benefits of Regular Exercise: A Comprehensive Review

Benefits of Regular Exercise A Comprehensive Review

By Md. Shafiqul Islam Abstract Regular exercise is a fundamental pillar of a healthy lifestyle, with significant implications for physical, mental, and cognitive well-being. This research article provides an extensive analysis of the diverse benefits of engaging in regular exercise, exploring its effects on cardiovascular health, metabolic function, mental wellness, and cognitive performance. Drawing upon … Read more

The Impact of the COVID-19 Pandemic on Mental Health: A Systematic Review

by Md. Shafiqul Islam Lecturer, Department of Biology, Collectorate School and College, Rangpur-5400 Keywords: COVID-19, pandemic, mental health, psychological impact, social impact, economic impact. Abstract: The COVID-19 pandemic has had unprecedented global implications, not only in terms of physical health but also with significant ramifications for mental health. This systematic review critically examines the multifaceted impact … Read more

Impact of COVID-19 on the Environment: Challenges and Opportunities for Sustainable Management

by Md. Shafiqul Islam Lecturer, Department of Biology, Collectorate School and College, Rangpur-5400 Keywords: COVID-19, pandemic,Air Quality, Biodiversity and Ecosystems, Sustainable Environmental Management Abstract The COVID-19 pandemic has led to unprecedented global challenges, significantly impacting human health, economies, and societies worldwide. This study comprehensively examines the multifaceted impact of the pandemic on the environment. Through … Read more

How Can Resource Conservation Benefit the Environment

Resource conservation can benefit the environment by reducing waste and preserving natural resources. Resource conservation involves sustainable practices that minimize waste and promote environmental protection, leading to long-term benefits for the planet and its inhabitants. By conserving resources, we reduce the negative impacts of human activities on the environment, such as air and water pollution, … Read more

How Do Wildfires Affect the Environment

Wildfires affect the environment by destroying habitats and releasing huge amounts of greenhouse gases into the atmosphere. Wildfires are a natural phenomenon, but human activities such as land-use changes, deforestation, and climate change have made them more frequent and severe. These fires can have devastating impacts on the environment, as they destroy forests, wetlands, and … Read more

How Does Overfishing Affect the Environment

Overfishing adversely affects the environment by depleting fish populations and disrupting the natural balance of marine ecosystems. As the practice continues, it can cause irreparable harm to the ocean, fish species, and other animals and plants that depend on them. Overfishing is a serious threat to the world’s aquatic resources, and it has significant environmental, … Read more

How to Protect the Environment

Protecting the environment can be achieved by reducing waste and carbon footprint. It is essential to take steps towards sustainable living to minimize the negative impact on the environment. The earth is currently experiencing unprecedented ecological challenges. Global warming, pollution, loss of biodiversity, and wildlife extinction are some of the consequences of climate change. To … Read more

Why is Composting Good for the Environment

Composting reduces landfill waste and greenhouse gas emissions. Composting enriches soil, reduces the need for chemical fertilizers and pesticides, and saves water. Composting reduces the amount of organic waste that goes into landfills and waste incinerators. This reduces the amount of methane, a potent greenhouse gas, that is released into the atmosphere. Composting is a … Read more