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Chapter 3 of 14
Important Questions

Understanding Ecosystems and Ecological Relationships

ICSE · Class 11 · Environmental Science

Most important questions from Understanding Ecosystems and Ecological Relationships for ICSE Class 11 Environmental Science board exam 2026. MCQs, short answer, and long answer questions with marks.

65 questions49 flashcards5 concepts

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65 Questions·
multiple choicemultiple correct

Sample Questions

1multiple correct
1 marks

Which of these are biotic components of an ecosystem?

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Producers, Consumers, Decomposers

Biotic components are the living parts of an ecosystem: producers, consumers, and decomposers.

2multiple correct
1 marks

Which of the following are abiotic components of an ecosystem?

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Sunlight, Air, Water

Abiotic components are non-living factors such as sunlight, air, water, soil, and minerals.

3multiple choice
1 marks

Which of these is an example of a natural ecosystem?

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Pond

A pond is a natural ecosystem, while gardens and agricultural fields are artificial ecosystems.

4multiple choice
1 marks

Which of these is an artificial ecosystem?

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Agricultural field

Artificial ecosystems are human-made, such as agricultural fields and gardens.

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Frequently Asked Questions

What are the important topics in Understanding Ecosystems and Ecological Relationships for ICSE Class 11 Environmental Science?
Understanding Ecosystems and Ecological Relationships covers several key topics that are frequently asked in ICSE Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Understanding Ecosystems and Ecological Relationships — ICSE Class 11 Environmental Science?
Understand the core concepts first, then work through the 65 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many important questions are there in Understanding Ecosystems and Ecological Relationships?
There are 65 practice questions available for Understanding Ecosystems and Ecological Relationships. These cover multiple question types including MCQs, short answer, and long answer questions.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for ICSE Class 11 Environmental Science.