Chapter 11 of 17
Revision Notes
Humidity in Atmosphere — Revision Notes
Gujarat Board · Class 11 · Geography
Humidity in Atmosphere revision notes for Gujarat Board Class 11 Geography: 4 topics in quick points. Includes Water Vapour and Its Distribution.
45 questions24 flashcards5 concepts
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Key Topics to Revise
1
Water Vapour and Its Distribution
- Water vapour comprises only 2% of atmosphere but plays vital role in weather and climate
- Humidity decreases with altitude - almost no humidity beyond 10-12 km from surface
- Seas and oceans (71% of Earth's surface) are major source regions for humidity
2
Importance of Humidity
- Acts as driving force for atmosphere
- Contributes to warming and cooling of atmosphere
- Absorbs solar heat and restrains heat on Earth
3
Evaporation Process
- Process where water turns into vapour due to solar heat
- Faster evaporation with increasing temperature
- Continues until air becomes saturated
4
Absolute and Relative Humidity
- Absolute humidity: actual amount of moisture in given air volume
- Changes with place and time
- Maximum over equator, minimum over poles
Get complete notes with diagrams and examples
Full NotesKey Concepts
Water vapor is the gaseous formEvaporation is the process where waterAbsolute humidity is the actual amountWhen water vapor cools and changesFour main types
Frequently Asked Questions
What are the important topics in Humidity in Atmosphere for Gujarat Board Class 11 Geography?
Key topics in Humidity in Atmosphere include Water Vapour and Its Distribution, Importance of Humidity, Evaporation Process, Absolute and Relative Humidity. Study these first, then practise questions on each for Class 11 exams.
How should I revise Humidity in Atmosphere for Class 11 exams?
Learn the core ideas first, then work through the 45 practice questions on Humidity in Atmosphere. Revise definitions regularly and use flashcards for quick recall before the exam.
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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