CBSE Class 11 Geography Water Oceans Notes

Download CBSE Class 11 Geography Water Oceans Notes in PDF format. All Revision notes for Class 11 Geography have been designed as per the latest syllabus and updated chapters given in your textbook for Geography in Class 11. Our teachers have designed these concept notes for the benefit of Class 11 students. You should use these chapter wise notes for revision on daily basis. These study notes can also be used for learning each chapter and its important and difficult topics or revision just before your exams to help you get better scores in upcoming examinations, You can also use Printable notes for Class 11 Geography for faster revision of difficult topics and get higher rank. After reading these notes also refer to MCQ questions for Class 11 Geography given on studiestoday

Revision Notes for Class 11 Geography Fundamental of Physical Geography Chapter 13 Water (Oceans)

Class 11 Geography students should refer to the following concepts and notes for Fundamental of Physical Geography Chapter 13 Water (Oceans) in Class 11. These exam notes for Class 11 Geography will be very useful for upcoming class tests and examinations and help you to score good marks

Fundamental of Physical Geography Chapter 13 Water (Oceans) Notes Class 11 Geography

 

WATER (OCEANS)

This unit deals with• Hydrological Cycle

• Oceans — submarine relief; distribution of temperature and salinity; movements of ocean water-waves, tides and currents

The earth, fortunately has an abundant supply of water on its surface. Hence, our planet is called the ‘Blue Planet’.

HYDROLOGICAL CYCLE

The hydrological cycle, is the circulation of water within the earth‘s hydrosphere in different forms i.e. the liquid, solid and the gaseous phases. It also refers to the continuous exchange of water between the oceans,

class_11_Geogeaphy_concept_9

STUDY THE GIVEN TABLE SHOWING THE WATER COMPOSITION ON THE EARTH SURFACE AND ANSWER THE FOLLOWING

QUESTIONS

1. What is the % of water in the oceans?

2. Which component of the earth consists of least percentage of water content?

3. what is the main use of soil moisture? Study above table and answer the questions that fallow

1. What do you mean by evapotranspiration?

2. What are the different forms of water in the atmosphere?

class_11_Geogeaphy_concept_10

The above table shows the distribution of water on the surface of the earth. About 71 per cent of the planetary water is found in the oceans. The remaining is held as freshwater in glaciers and icecaps, groundwater sources, lakes, soil moisture, atmosphere, streams and within life. Nearly 59 per cent of the water that falls on land returns to the atmosphere through evaporation from over the oceans as well as from other places. The remainder runs-off on the surface, infiltrates into the ground or a part of it becomes glacier. It is to be noted that the renewable water on the earth is constant while the demand is increasing tremendously. This leads to water crisis in different parts of he world — spatially and temporally. The pollution of river waters has further aggravated the crisis. How can you intervene in improving the water quality and augmenting the available quantity of water?

RELIEF OF THE OCEAN FLOOR

class_11_Geogeaphy_concept_11

Divisions of the Ocean Floors

The ocean floors can be divided into four major divisions:

1) The Continental Shelf;

2) The Continental Slope;

3) The Deep Sea Plain;

4) The Oceanic Deeps.

Besides, these divisions

There are also major and minor relief features in the ocean floors like ridges, hills, sea mounts, guyots, trenches, canyons, etc.

Continental Shelf

1. The continental shelf is the extended margin of each continent occupied by relatively shallow seas and gulfs.

2. It is the shallowest part of the ocean showing an average gradient of 1° or even less.

3. The shelf typically ends at a very steep slope, called the shelf break.

4. The width of the continental shelves vary from one ocean to another.

5. The average width of continental shelves is about 80 km.

6. The shelves are almost absent or very narrow along some of the margins like the coasts of Chile, the west coast of Sumatra, etc.

7. On the contrary, the Siberian shelf in the Arctic Ocean, the largest in the world, stretches to 1,500 km in width.

8. The depth of the shelves also varies. It may be as shallow as 30 m in some areas while in some areas it is as deep as 600 m.

9. The continental shelves are covered with variable thicknesses of sediments brought down by rivers, glaciers, wind, from the land and distributed by waves and currents.

10.Massive sedimentary deposits received over a long time by the continental shelves, become the source of fossil fuels.

Continental Slope

1. The continental slope connects the continental shelf and the ocean basins.

2. It begins where the bottom of the continental shelf sharply drops off into a steep slope.

3. The gradient of the slope region varies between 2-5°.


Please click the link below to download pdf file for CBSE Class XI Geography Water ( Oceans) Concepts.

Fundamental of Physical Geography Chapter 02 The Origin and Evolution of the Earth
CBSE Class 11 Geography The Origin And Evolution Of The Earth Notes
Fundamental of Physical Geography Chapter 03 Interior of the Earth
CBSE Class 11 Geography Interior Of The Earth Notes
Fundamental of Physical Geography Chapter 04 Distribution of Oceans and Continents
CBSE Class 11 Geography Distribution Of Oceans And Continents Notes
Fundamental of Physical Geography Chapter 05 Minerals and Rocks
CBSE Class 11 Geography Minerals And Rocks Notes
Fundamental of Physical Geography Chapter 06 Geomorphic Processes
CBSE Class 11 Geography Geomorphic Process Notes
Fundamental of Physical Geography Chapter 07 Landforms and their Evolution
CBSE Class 11 Geography Landforms And Their Evolution Notes
Fundamental of Physical Geography Chapter 08 Composition and Structure of Atmosphere
CBSE Class 11 Geography Composition And Structure Of The Atmosphere Notes
Fundamental of Physical Geography Chapter 09 Solar Radiation, Heat Balance and Temperature
CBSE Class 11 Geography Solar Radiation Heat Balance And Temperature Notes
Fundamental of Physical Geography Chapter 10 Atmospheric Circulation and Weather Systems
CBSE Class 11 Geography Atmospheric Circulation And Weather System Notes
Fundamental of Physical Geography Chapter 11 Water in the Atmosphere
CBSE Class 11 Geography Water In The Atmosphere Notes
Fundamental of Physical Geography Chapter 12 World Climate and Climate Change
CBSE Class 11 Geography World Climate And Climate Change Notes
Fundamental of Physical Geography Chapter 13 Water (Oceans)
CBSE Class 11 Geography Water Oceans Notes
Fundamental of Physical Geography Chapter 14 Movements of Ocean Water
CBSE Class 11 Geography Movements Of Ocean Water Notes
Fundamental of Physical Geography Chapter 15 Life on the Earth
CBSE Class 11 Geography Life On Earth Notes
Fundamental of Physical Geography Chapter 16 Biodiversity and Conservation
CBSE Class 11 Geography Biodiversity And Conservation Notes
India Physical Environment Chapter 01 India Location
CBSE Class 11 Geography India Location Notes
India Physical Environment Chapter 02 Structure and Physiography
CBSE Class 11 Geography Structure And Physiography Notes
India Physical Environment Chapter 03 Drainage System
CBSE Class 11 Geography Drainage System Notes
India Physical Environment Chapter 04 Climate
CBSE Class 11 Geography Climate Vegetation And Soil Notes
India Physical Environment Chapter 05 Natural Vegetation
CBSE Class 11 Geography Natural Vegetation Notes
India Physical Environment Chapter 06 Soils
CBSE Class 11 Geography Soils Notes
India Physical Environment Chapter 07 Natural Hazards and Disasters
CBSE Class 11 Geography Natural Hazards And Disasters Notes

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CBSE Class 11 Geography Fundamental of Physical Geography Chapter 13 Water (Oceans) Notes

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Notes for Geography CBSE Class 11 Fundamental of Physical Geography Chapter 13 Water (Oceans)

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Fundamental of Physical Geography Chapter 13 Water (Oceans) Notes for Geography CBSE Class 11

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Fundamental of Physical Geography Chapter 13 Water (Oceans) CBSE Class 11 Geography Notes

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Notes for CBSE Geography Class 11 Fundamental of Physical Geography Chapter 13 Water (Oceans)

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