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NCERT Solutions

Composition and Structure of Atmosphere

Madhya Pradesh Board · Class 11 · Geography

NCERT Solutions for Composition and Structure of Atmosphere — Madhya Pradesh Board Class 11 Geography.

76 questions70 flashcards5 concepts

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11 Questions Solved · 1 Section

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EXERCISES

1(i)Which one of the following gases constitutes the major portion of the atmosphere?Show solution
The major portion of the atmosphere is made up of nitrogen.

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1(ii)Atmospheric layer important for human beings is:Show solution
The troposphere is the atmospheric layer most important for human beings because it contains the air we breathe and is the layer where weather and climate changes occur.

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1(iii)Sea salt, pollen, ash, smoke soot, fine soil — these are associated with:Show solution
Sea salt, pollen, ash, smoke soot and fine soil are examples of dust particles in the atmosphere.

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1(iv)Oxygen gas is in negligible quantity at the height of atmosphere:Show solution
According to the chapter, oxygen becomes almost negligible at a height of 120 km from the earth's surface.

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1(v)Which one of the following gases is transparent to incoming solar radiation and opaque to outgoing terrestrial radiation?Show solution
Carbon dioxide is transparent to incoming solar radiation but opaque to outgoing terrestrial radiation, so it helps in the greenhouse effect.

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2(i)What do you understand by atmosphere?Show solution
The atmosphere is the mixture of different gases, water vapour and dust particles that envelopes the earth all around. It is an essential part of the earth and supports life by providing gases like oxygen and carbon dioxide.

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2(ii)What are the elements of weather and climate?
2(iii)Describe the composition of atmosphere.
2(iv)Why is troposphere the most important of all the layers of the atmosphere?
3(i)Describe the composition of the atmosphere.
3(ii)Draw a suitable diagram for the structure of the atmosphere and label it and describe it.

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Frequently Asked Questions

What are the important topics in Composition and Structure of Atmosphere for Madhya Pradesh Board Class 11 Geography?
Composition and Structure of Atmosphere covers several key topics that are frequently asked in Madhya Pradesh Board 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 — Madhya Pradesh Board Class 11 Geography?
Understand the core concepts first, then work through the 76 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
Where can I get free NCERT Solutions for Composition and Structure of Atmosphere Class 11 Geography?
This page has free step-by-step NCERT Solutions for every exercise question in Composition and Structure of Atmosphere (Madhya Pradesh Board Class 11 Geography) — written the way examiners award marks: given, formula, working, answer.

Sources & Official References

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

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