Science
Our Environment
हमारा पर्यावरण
In Class 10 Science, the chapter Our Environment introduces ecosystems and the relationships between living organisms and their surroundings. Students explore food chains, food webs, and the movement of energy through different trophic levels. The chapter also explains the importance of the ozone layer, the effects of non-biodegradable waste, and practical approaches to waste management for protecting environmental balance.
1Ecosystem
पारितंत्र
In this Class 10 Science topic from the chapter “Our Environment,” students learn how an ecosystem functions through interactions between living organisms and non-living factors such as air, water, soil, and sunlight. They explore producers, consumers, and decomposers; food chains and food webs; the transfer of energy across trophic levels; and the role of decomposers in nutrient cycling. The topic also helps explain ecological balance and how human activities can affect natural ecosystems.
2 questionsFood chain and food web
खाद्य शृंखला और खाद्य जाल
In this Class 10 Science topic from “Our Environment,” students learn how energy and nutrients move through an ecosystem. They explore the roles of producers, consumers, and decomposers, and understand trophic levels through examples of food chains. By comparing several connected food chains, students see how a food web represents feeding relationships more realistically. The topic also explains how changes in one population can affect others, helping students understand ecological balance and the flow of energy in nature.
3 questionsOzone layer
ओज़ोन परत
In Class 10 Science, under the chapter “Our Environment,” students learn how the ozone layer in the stratosphere absorbs much of the Sun’s harmful ultraviolet (UV) radiation and protects living organisms. The topic explains how chemicals such as chlorofluorocarbons (CFCs) contribute to ozone depletion, along with its effects on human health, plants, animals, and ecosystems. It also highlights responsible choices and international efforts to protect this important part of Earth’s atmosphere.
1 questionsWaste management
अपशिष्ट प्रबंधन
In this Class 10 Science topic from “Our Environment,” students learn how waste is generated, classified, and managed responsibly. They explore biodegradable and non-biodegradable waste, segregation at source, composting, recycling, reuse, and safe disposal methods. The topic also explains how improper waste management causes pollution and harms ecosystems, while the 3Rs—reduce, reuse, and recycle—support cleaner surroundings and sustainable living.
0 questions