Environment and Ecosystem

Overview

Environment and Ecosystem is a foundational topic in the Science section of JTET Paper II, bridging biology with environmental awareness. This topic tests your understanding of how living organisms interact with each other and their physical surroundings—a concept central to both scientific literacy and environmental education.

For JTET, expect questions on ecosystem components, energy flow through food chains and food webs, and the causes and effects of various types of pollution. Since Jharkhand is rich in forests and mineral resources but also faces environmental challenges from mining and industrialization, questions often connect ecological concepts to local contexts. Mastering this topic requires understanding both the theoretical framework of ecosystems and practical issues of environmental degradation.

Students must be able to identify producers, consumers, and decomposers, trace energy flow, distinguish between different pollution types, and suggest conservation measures—all at the upper-primary conceptual level.

Key Concepts

• **Ecosystem** is a functional unit of nature where living organisms (biotic components) interact with non-living factors (abiotic components) through energy flow and nutrient cycling.

• **Biotic components** include producers (green plants), consumers (herbivores, carnivores, omnivores), and decomposers (bacteria, fungi). **Abiotic components** include sunlight, water, soil, temperature, and air.