Composition and Structure of Atmosphere
Himachal Pradesh Board · Class 11 · Geography
Most important questions from Composition and Structure of Atmosphere for Himachal Pradesh Board Class 11 Geography board exam 2026. MCQs, short answer, and long answer questions with marks.
Interactive on Super Tutor
Studying Composition and Structure of Atmosphere? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for important questions and more.
1,000+ Class 11 students started this chapter today
Sample Questions
In which atmospheric layer are radio waves reflected back to Earth?
Show answer
Ionosphere
The ionosphere, located between 80 and 400 km above the mesopause, contains electrically charged particles that reflect radio waves back to Earth.
What is the average height of the troposphere?
Show answer
13 km
The reference document states that the average height of the troposphere is 13 km, though it varies between 8 km near the poles and 18 km at the equator.
Where is the highest concentration of dust particles typically found?
Show answer
Subtropical and temperate regions
The text indicates that dust particles have higher concentration in subtropical and temperate regions due to dry winds.
What is the temperature at the tropopause over the equator?
Show answer
-80°C
The reference document specifically states that the air temperature at the tropopause is about minus 80°C over the equator.
+67 more questions available
Practice AllFrequently Asked Questions
What are the important topics in Composition and Structure of Atmosphere for Himachal Pradesh Board Class 11 Geography?
How to score full marks in Composition and Structure of Atmosphere — Himachal Pradesh Board Class 11 Geography?
How many important questions are there in Composition and Structure of Atmosphere?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Composition and Structure of Atmosphere
Syllabus
What topics to cover
Revision Notes
Key points for last-minute revision
Study Plan
Step-by-step plan to ace this chapter
Flashcards
Quick-fire cards for active recall
Formula Sheet
All formulas in one place
Chapter Summary
Understand the chapter at a glance
Practice Quiz
Test yourself with a quick quiz
Concept Maps
See how topics connect visually
NCERT Solutions
Every textbook question solved step by step
For serious students
Get the full Composition and Structure of Atmosphere chapter — for free.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for Himachal Pradesh Board Class 11 Geography.