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Study and Interpretation of Topographical Maps

ICSE · Class 12 · Geography

Complete topic list for Study and Interpretation of Topographical Maps in ICSE Class 12 Geography. Key concepts, sub-topics, and what to focus on for board exams.

70 questions40 flashcards5 concepts

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4 Topics · ICSE Class 12 Geography

Topics in Study and Interpretation of Topographical Maps

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1. Meaning, Nature, and Importance of Topographical Maps

  • The term topography comes from two Greek words: topos meaning a place and grapho meaning I draw or depict.
  • A topographical map shows the surface of the earth in detail.
  • A topographical map is also known as a Topographical Survey Sheet or topo-sheet.
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2. Development of Topographical Maps in India

  • The first attempt at mapping India was made by D'Anville in 1752.
  • The Survey of India was established in 1767 when Major James Rennell was appointed the Surveyor General of Bengal.
  • Rennell's famous Map of Hindoostan produced in 1788 marks the beginning of scientific mapping in India.
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3. Major Map Series Published by Survey of India

  • Southern Asia Series is drawn on a scale of 1:2,000,000 and covers 8 degrees latitude and 12 degrees longitude.
  • India and Adjacent Countries Series is drawn on a scale of 1:1,000,000 and covers 4 degrees north to 40 degrees north and 44 degrees east to 104 degrees east.
  • India and Adjacent Countries Series has 106 maps numbered 1 to 106.
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4. Nomenclature and Numbering of Topographical Sheets

  • Topographical sheets are based on the India and Adjacent Countries Series of 1:1,000,000.
  • Quarter Inch or Degree Sheet is 1:250,000 and has an extent of 1 degree latitude by 1 degree longitude.
  • A degree sheet is divided into 16 parts labelled A to P.

Key Concepts

Central concept: Topographical maps as detailed large-scale maps that show the physical and human features of a small area

Meaning of topographyScale of topographical mapsUses of topo-sheetsDevelopment in IndiaSurvey of IndiaMajor map seriesSheet numbering and extentConventional signs and colours

Frequently Asked Questions

What are the important topics in Study and Interpretation of Topographical Maps for ICSE Class 12 Geography?
Study and Interpretation of Topographical Maps covers several key topics that are frequently asked in ICSE 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 Study and Interpretation of Topographical Maps — ICSE Class 12 Geography?
Understand the core concepts first, then work through the 70 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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