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Important Questions

Composition and Structure of Atmosphere

ICSE · Class 11 · Geography

Most important questions from Composition and Structure of Atmosphere for ICSE Class 11 Geography board exam 2026. MCQs, short answer, and long answer questions with marks.

64 questions38 flashcards5 concepts

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64 Questions·
multiple choicemultiple correct

Sample Questions

1multiple choice
1 marks

What is the percentage of oxygen in atmospheric volume?

Show answer

20.99%

Oxygen constitutes 20.99% of atmospheric volume.

2multiple choice
1 marks

Which gas is called the life-giver of the atmosphere?

Show answer

Oxygen

Oxygen is called the life-giver because it is essential for breathing and burning.

3multiple choice
1 marks

What is the percentage of carbon dioxide in the atmosphere?

Show answer

0.04%

Carbon dioxide forms just 0.04% of the atmosphere.

4multiple choice
1 marks

Which two non-gas constituents of the atmosphere are named in the chapter?

Show answer

Water vapour and dust particles

Apart from gases, the atmosphere contains water vapour and dust particles.

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Frequently Asked Questions

What are the important topics in Composition and Structure of Atmosphere for ICSE Class 11 Geography?
Composition and Structure of Atmosphere 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 Composition and Structure of Atmosphere — ICSE Class 11 Geography?
Understand the core concepts first, then work through the 64 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 Composition and Structure of Atmosphere?
There are 64 practice questions available for Composition and Structure of Atmosphere. These cover multiple question types including MCQs, short answer, and long answer questions.

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

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