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Composition & structure of atmosphere

Telangana Open School (TOSS) · Class 12 · Geography

Most important questions from Composition & structure of atmosphere for Telangana Open School (TOSS) Class 12 Geography board exam 2026. MCQs, short answer, and long answer questions with marks.

52 questions30 flashcards3 concepts

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52 Questions·
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Sample Questions

1multiple choice
1 marks

Which gas is essential for the process of respiration in living organisms?

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Oxygen

Oxygen is vital for respiration, the process by which organisms produce energy.

2multiple choice
1 marks

Where is the ionosphere located?

Show answer

Above the mesosphere

The ionosphere extends from above the mesosphere up to 400 km altitude.

3multiple choice
1 marks

Which of the following is a greenhouse gas?

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Carbon dioxide

Carbon dioxide is a greenhouse gas that traps heat in the atmosphere, contributing to global warming.

4multiple choice
1 marks

What is the main source of atmospheric water vapour?

Show answer

Hydrosphere

The hydrosphere, which includes all water bodies, is the source of atmospheric water vapour.

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Frequently Asked Questions

What are the important topics in Composition & structure of atmosphere for Telangana Open School (TOSS) Class 12 Geography?
Composition & structure of atmosphere covers several key topics that are frequently asked in Telangana Open School (TOSS) Class 12 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 & structure of atmosphere — Telangana Open School (TOSS) Class 12 Geography?
Understand the core concepts first, then work through the 52 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 & structure of atmosphere?
There are 52 practice questions available for Composition & 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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