NCERT Exemplar Class 10 Science Chapter 15 – Our Environment
The NCERT Exemplar Class 10 Science Solutions for Chapter 15 – Our Environment help students understand the interaction between living organisms and their surroundings. This chapter focuses on ecosystems, food chains, and the impact of human activities on the environment. With the support of NCERT Solutions for Class 10 Science, learners gain both theoretical knowledge and practical awareness of environmental issues. The chapter begins with the concept of an ecosystem, explaining how biotic (living) and abiotic (non-living) components interact to maintain balance. Students explore different ecosystems such as forests, grasslands, ponds, and oceans. The importance of producers, consumers, and decomposers in maintaining the flow of energy is highlighted. Next, the chapter introduces food chains and food webs, showing how energy is transferred between organisms. The concept of trophic levels is explained, along with the 10% law of energy transfer, which states that only a small fraction of energy is passed on to the next level. Students also learn about the ecological pyramid and its significance in representing the flow of energy.
The chapter then moves to the issue of environmental problems, particularly focusing on waste management. Biodegradable and non-biodegradable wastes are compared, and students understand why plastics and other synthetic materials create long-term environmental hazards. The chapter also emphasizes the harmful effects of excessive use of chemicals, deforestation, and industrialization. Another important section is on ozone layer depletion and global warming, explaining how human activities such as the release of chlorofluorocarbons (CFCs) contribute to environmental damage. Students are encouraged to think about sustainable solutions and eco-friendly practices. By solving NCERT Exemplar Class 10 Science exercises, learners practice reasoning-based, diagrammatic, and application-oriented questions that enhance critical thinking. The NCERT Solutions for Class 10 Science Chapter 15 help students write precise and exam-ready answers. In conclusion, Chapter 15 makes students environmentally conscious by explaining the interdependence of organisms and ecosystems. It not only prepares them for board exams but also builds awareness about the urgent need for conservation and sustainable living. With NCERT Exemplar questions, learners develop both academic understanding and social responsibility.