Chapter 4 of 31
Revision Notes
Work of River, underground water, glacier, winds and sea waves — Revision Notes
Telangana Open School (TOSS) · Class 12 · Geography
Work of River, underground water, glacier, winds and sea waves revision notes for Telangana Open School (TOSS) Class 12 Geography: 4 topics in quick.
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 NotesKey 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?
Key topics in Work of River, underground water, glacier, winds and sea waves include Work of River, Work of Underground Water, Work of Glacier, Work of Winds. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How should I revise Work of River, underground water, glacier, winds and sea waves for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 55 practice questions on Work of River, underground water, glacier, winds and sea waves. 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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