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Circulation of Ocean water, waves, tides & Ocean currents

Telangana Open School (TOSS) · Class 12 · Geography

Quick revision notes for Circulation of Ocean water, waves, tides & Ocean currents — Telangana Open School (TOSS) Class 12 Geography. Key concepts, formulas, and definitions for last-minute revision.

50 questions27 flashcards3 concepts

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Key Topics to Revise

1

1. Waves

  • Waves are formed when wind blows over the surface of the ocean, creating ripples that grow into waves.
  • The main cause of ocean waves is wind, but underwater disturbances like earthquakes can cause tsunamis.
  • Waves transmit energy across the ocean but do not move water forward over long distances.
2

2. Tides

  • Tides are the regular rise and fall of sea levels caused by the gravitational pull of the moon and sun.
  • The moon has a stronger effect on tides than the sun because it is closer to Earth.
  • There are two high tides and two low tides every 24 hours and 50 minutes — this is called a semi-diurnal tide cycle.
3

3. Ocean Currents

  • Ocean currents are large flows of water moving in specific directions across the oceans.
  • Currents can be warm (from equator to poles) or cold (from poles to equator).
  • Main factors causing ocean currents: wind, Coriolis effect, temperature, salinity, and shape of continents.

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Full Notes

Key Concepts

Waves are ripples or ridgesTides are the regular riseOcean currents are large flows

Frequently Asked Questions

What are the important topics in Circulation of Ocean water, waves, tides & Ocean currents for Telangana Open School (TOSS) Class 12 Geography?
Circulation of Ocean water, waves, tides & Ocean currents 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 Circulation of Ocean water, waves, tides & Ocean currents — Telangana Open School (TOSS) Class 12 Geography?
Understand the core concepts first, then work through the 50 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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