Chapter 8 of 31
Revision Notes
Atmospheric pressure and Types of Winds — Revision Notes
Telangana Open School (TOSS) · Class 12 · Geography
Atmospheric pressure and Types of Winds revision notes for Telangana Open School (TOSS) Class 12 Geography: 3 topics in quick points.
45 questions35 flashcards4 concepts
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Key Topics to Revise
1
Atmospheric Pressure
- Atmospheric pressure is the weight of air on a unit area of Earth's surface.
- It is measured using a barometer in units of millibars (mb).
- Standard sea-level pressure is 1013.25 mb.
2
Pressure Belts of the World
- There are seven global pressure belts: one equatorial low, two subtropical highs, two subpolar lows, and two polar highs.
- Equatorial Low-Pressure Belt lies between 0° to 5° N and S; receives vertical sun rays, causing air to rise.
- Subtropical High-Pressure Belts lie around 30° N and S; sinking air creates calm zones known as Horse Latitudes.
3
Winds and Their Types
- Winds are horizontal movements of air from high to low pressure.
- Permanent winds blow regularly throughout the year: Trade Winds, Westerlies, Polar Easterlies.
- Trade Winds blow from subtropical highs (30°) to equatorial low (0°); called NE in Northern Hemisphere, SE in Southern Hemisphere.
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Full NotesKey Concepts
Atmospheric pressure is the weightDue to uneven heating and Earth'sBecause the Earth rotatesWinds are classified into three types
Frequently Asked Questions
What are the important topics in Atmospheric pressure and Types of Winds for Telangana Open School (TOSS) Class 12 Geography?
Key topics in Atmospheric pressure and Types of Winds include Atmospheric Pressure, Pressure Belts of the World, Winds and Their Types. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How should I revise Atmospheric pressure and Types of Winds for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 45 practice questions on Atmospheric pressure and Types of Winds. 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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