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Work of River, underground water, glacier, winds and sea waves

Telangana Open School (TOSS) · Class 12 · Geography

Quick revision notes for Work of River, underground water, glacier, winds and sea waves — Telangana Open School (TOSS) Class 12 Geography. Key concepts, formulas, and definitions for last-minute revision.

55 questions30 flashcards5 concepts

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Key Topics to Revise

1

Work of River

  • Rivers perform three main functions: erosion, transportation, and deposition.
  • River erosion occurs through corrosion (abrasion), solution, hydraulic action, and attrition.
  • Transportation happens via traction, saltation, suspension, and solution.
2

Work of Underground Water

  • Rainwater that seeps underground is called underground water.
  • Permeable rocks (like sandstone) allow water to pass; impermeable rocks (like clay) do not.
  • Water table is the upper surface of saturated zone; it fluctuates with seasons.
3

Work of Glacier

  • A glacier is a moving mass of ice formed from compacted snow, moving slowly under its own weight.
  • Two types: Continental glaciers (vast ice sheets in Antarctica, Greenland) and Valley glaciers (in mountain valleys).
  • Snowline is the altitude above which snow never fully melts.
4

Work of Winds

  • Wind is a powerful agent in arid and semi-arid regions with little vegetation.
  • Wind erosion includes abrasion, attrition, and deflation.
  • Mushroom rocks form due to differential erosion (softer base eroded more).

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Full Notes

Key Concepts

Landforms created by the actionA unique landscape formed in limestoneFeatures formed by the movementLandforms created by wind actionFeatures formed by the action

Frequently Asked Questions

What are the important topics in Work of River, underground water, glacier, winds and sea waves for Telangana Open School (TOSS) Class 12 Geography?
Work of River, underground water, glacier, winds and sea waves covers several key topics that are frequently asked in Telangana Open School (TOSS) 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 Work of River, underground water, glacier, winds and sea waves — Telangana Open School (TOSS) Class 12 Geography?
Understand the core concepts first, then work through the 55 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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