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Humidity in Atmosphere

Gujarat Board · Class 11 · Geography

Quick revision notes for Humidity in Atmosphere — Gujarat Board Class 11 Geography. Key concepts, formulas, and definitions for last-minute revision.

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

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Full Notes

Key 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?
Humidity in Atmosphere covers several key topics that are frequently asked in Gujarat 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 Humidity in Atmosphere — Gujarat Board Class 11 Geography?
Understand the core concepts first, then work through the 45 practice questions available for this chapter. Revise formulas and 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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