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Science

Food chain and food web

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.

Easy · Level 1 · 1 questions

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  1. Increase in concentration of harmful chemicals at higher trophic levels of a food chain
  2. Increase in the body size of organisms
  3. Increase in the reproductive rate of organisms
  4. Increase in the concentration of oxygen in the atmosphere

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