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NCERT Solutions For Class 11 Geography Chapter 10 Water in the Atmosphere - 2025-26

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Stepwise NCERT Answers & Key Tips for Water in the Atmosphere (Class 11)

Master all the concepts of Chapter-10 with these NCERT Solutions for Class 11 Geography: Water in the Atmosphere NCERT Solutions, crafted for CBSE 2025–26 exams. Here, you’ll find clear, step-by-step answers that make each topic understandable and exam-ready.


Get comprehensive exercise-wise solutions, complete with all essential definitions and free PDF download options. Our answers follow the latest CBSE marking scheme, helping you structure your responses to gain those important stepwise marks with ease.


Use these stepwise NCERT answers and marking-scheme strategies to improve accuracy, avoid common mistakes, and score full marks. Perfect for quick revision and building confidence for all upcoming school and board assessments.


Stepwise NCERT Answers & Key Tips for Water in the Atmosphere (Class 11)

1. Multiple Choice Questions.


1. Which one of the following is the most important constituent of the atmosphere for human beings?


  • (a) Water vapour
  • (b) Nitrogen
  • (c) Dust particle
  • (d) Oxygen

Answer: (a) Water vapour.


2. Which one of the following process is responsible for transforming liquid into vapour?


  • (a) Condensation
  • (b) Transpiration
  • (c) Evaporation
  • (d) Precipitation

Answer: (c) Evaporation.


3. The air that contains moisture to its full capacity:


  • (a) Relative humidity
  • (b) Specific humidity
  • (c) Absolute humidity
  • (d) Saturated air

Answer: (d) Saturated air.


4. Which one of the following is the highest cloud in the sky?


  • (a) Cirrus
  • (b) Stratus
  • (c) Nimbus
  • (d) Cumulus

Answer: (a) Cirrus.


2. Answer the following questions in about 30 words.


1. Name the three types of precipitation.


Answer: The three types of precipitation are convectional rain, orographic (relief) rain, and cyclonic (frontal) rain.


2. Explain relative humidity.


Answer: Relative humidity is the percentage of moisture present in the atmosphere compared to its full capacity at a given temperature. It changes with air temperature and is higher over oceans and lowest over continents.


3. Why does the amount of water vapour decrease rapidly with altitude?


Answer: The amount of water vapour decreases rapidly with altitude because most moisture comes from evaporation and transpiration near the earth's surface and heavier water vapour cannot rise easily to higher altitudes due to decreasing temperature and pressure.


4. How are clouds formed? Classify them.


Answer: Clouds are formed by condensation of water vapour in free air at considerable elevations, resulting in masses of tiny water droplets or ice crystals. Clouds are classified as cirrus, cumulus, stratus, and nimbus based on height, expanse, density, and appearance.


3. Answer the following questions in about 150 words.


1. Discuss the salient features of the world distribution of precipitation.


Answer: World distribution of precipitation is highly uneven, and several factors determine rainfall in different regions:

  • Rainfall generally decreases from the equator towards the poles.
  • Coastal regions receive more rainfall than interiors of continents due to proximity to water bodies.
  • Rainfall is heavier over the oceans than landmasses.
  • From 35° to 40° N and S, rainfall is higher on eastern coasts, while from 45° to 65° N and S, due to westerlies, it is higher on western margins.
  • Mountains parallel to coasts result in higher rainfall on windward slopes and less on leeward or rain-shadow sides.
  • Equatorial areas, windward mountain slopes, and monsoon lands get heavy rainfall (>200 cm/year), interiors get moderate (100–200 cm), and rain-shadow areas and high latitudes receive the least (<50 cm/year).
Rainfall distribution also varies seasonally; some regions receive rain all year, while others have marked dry and wet seasons.


2. What are forms of condensation? Describe the process of dew and frost formation.


Answer: The main forms of condensation are dew, frost, fog, mist, and clouds.

Dew forms when water vapour condenses as water droplets on cool surfaces like grass or leaves, under calm, clear night conditions when the dew point is above freezing.

Frost forms similarly, but the condensation happens below the freezing point (0°C), so water vapour turns directly into ice crystals. Frost typically occurs on cold surfaces during clear, calm nights when both air temperature and dew point are at or below freezing.


Understanding Water in the Atmosphere – NCERT Solutions 2025-26

Grasping the concept of water in the atmosphere is essential for Geography students. This chapter covers forms of condensation, types of precipitation, and world distribution of rainfall in detail, building a strong conceptual foundation for exam success.


Reviewing NCERT solutions chapter-wise helps you gain clarity about important terms like humidity, dew point, and relative humidity. Understanding these definitions and processes will boost your confidence and improve your answer presentation in board exams.


Stay consistent with revision and practice the key concepts of the chapter. Focus on figures and real-life examples for better recall, and don’t miss forms of condensation and types of rainfall—they’re exam favourites!


CBSE Class 11 Geography Chapter-wise NCERT Solutions



CBSE Class 11 Geography Study Materials

FAQs on NCERT Solutions For Class 11 Geography Chapter 10 Water in the Atmosphere - 2025-26

1. What are NCERT Solutions for Class 11 Geography Chapter-10: Water in the Atmosphere?

NCERT Solutions for Class 11 Geography Chapter-10: Water in the Atmosphere provide chapter-wise, step-by-step answers to textbook questions, helping students master concepts and prepare for the CBSE 2025–26 exam.

Key features include:
• Comprehensive answers for all exercises (intext and back questions)
• Clear explanations with relevant diagrams and definitions
• Follows the latest NCERT textbook and CBSE marking scheme
• Useful for quick revision and exam preparation

2. How do I write stepwise NCERT answers to score full marks in Class 11 Geography?

To score full marks in Class 11 Geography, follow a structured, stepwise answer approach as per NCERT and CBSE guidelines.

Tips:
• Begin with a definition or introduction to the topic
• Break your answer into logical steps, using bullets or points
• Include key terms, relevant facts, and important data
• Draw and label diagrams/maps where required
• Conclude with a summary statement

This method aligns with the CBSE marking scheme and boosts your chances of achieving full marks.

3. Which are the most important topics in 'Water in the Atmosphere' for exams?

The most important topics in the 'Water in the Atmosphere' chapter for exams include:

Evaporation and Condensation
Humidity (absolute and relative)
Forms of precipitation
Dew, frost, fog, mist, clouds
Rainfall types
Water cycle and its significance

Focus on definitions, processes, examples, and diagrams to score well.

4. Do I need to include diagrams and definitions in my answers?

Yes, including well-labelled diagrams and accurate definitions in your answers is essential for scoring maximum marks in CBSE exams.

Key points:
• Diagrams clarify processes (e.g., water cycle, cloud formation)
• Definitions improve precision and fulfill marking criteria
• Both are often specifically asked in questions or as part of step-marking

Always check if the question demands a diagram or definition and include them for best results.

5. How can I structure long answers in Class 11 Geography for better marks?

Structure long answers in Class 11 Geography with a clear introduction, a logical body with stepwise details, and a concise conclusion.

Recommended structure:
1. Introduction: Briefly introduce the topic
2. Main Body: Present facts, explanations, and processes in points or paragraphs
3. Include examples, diagrams, and data wherever applicable
4. Conclusion: Summarise key points or state their significance

This format matches CBSE expectations and improves clarity for examiners.

6. Where can I download Water in the Atmosphere Class 11 NCERT Solutions PDF?

You can download the Water in the Atmosphere Class 11 NCERT Solutions PDF from trusted educational platforms that offer free, syllabus-aligned materials.

To download:
• Visit the dedicated chapter solutions page
• Look for a "Download PDF" button or link
• Ensure the solutions follow the latest CBSE syllabus and are reviewed by subject experts

Using PDF solutions enables offline revision and quick access during studies.

7. Are NCERT Solutions enough for Class 11 Geography exams?

NCERT Solutions are sufficient for conceptual clarity and most school exams, as they cover every question from the official textbook.

Best practice:
• Master all NCERT textbook exercises using solutions
• Practice additional MCQs, map-based questions, and sample papers for thorough preparation
• Revise important definitions, diagrams, and formulae regularly

8. How to present long answers to match CBSE marking?

To match CBSE marking for long answers:

• Start with a short introduction
• Use headings, bullets, or diagrams to break information into clear steps
• Highlight key terms and concepts (e.g., 'humidity', 'precipitation')
• Sequentially answer each part of the question
• Write a brief conclusion if needed

This helps secure step marks and makes your answers examiner-friendly.

9. How to learn diagrams and maps for 'Water in the Atmosphere'?

To learn diagrams and maps for 'Water in the Atmosphere':

• Practice drawing key diagrams (like the water cycle and types of precipitation) regularly
• Follow NCERT textbook examples for proper labelling
• Use color pencils for clarity and neatness (if allowed)
• Revise with flashcards or quick notes on important labels

Accurate and neat diagrams help in quick recall and scoring well in diagrams-based questions.

10. What is the CBSE marking scheme for this chapter?

The CBSE marking scheme for 'Water in the Atmosphere' awards marks for:

• Stepwise logical answers
• Use of definitions, diagrams, and keywords
• Accuracy and completion of all question parts
• Neat presentation and proper labelling of diagrams

Referring to the marking scheme helps in understanding how to attempt each question for best results.

11. What is the most effective way to solve Class 11 Geography Chapter-10: Water in the Atmosphere questions?

The most effective way is to write structured, stepwise answers using key definitions, correct diagrams, and accurate examples as per CBSE guidelines.

This approach:
• Ensures every step is clear and earns stepwise marks
• Aligns solutions with the official marking scheme
• Reinforces learning and builds exam confidence

12. Do examiners award partial marks for correct steps even if the final answer is wrong?

Yes, examiners often award partial marks for correct procedures or steps even if the final answer is incorrect.

Best practices:
• Show all solution steps clearly
• Write explanations for each calculation or diagram
• Use accurate terminology

This strategy helps maximize your total score, even if minor mistakes occur.