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| Major Domains of the Earth : Class 6 ncert cbse textbook notes solution chapter 5-TEGOFFICIAL.COM |
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Major Domains of the Earth : Class 6 ncert cbse textbook notes solution chapter 5-TEGOFFICIAL.COM
The earth is the only planet which supports life. Human beings can survive here because the life sustaining elements like land, water and air are present on the earth.
The earth has broadly four components which are:
Now let's study about these.
The earth has broadly four components which are:
Lithosphere, Atmosphere, Hydrosphere and Biosphere.
Now let's study about these.
Lithosphere:
(i) The solid portion of the earth is called the lithosphere.
(ii) There are two divisions of the earth’s surface:
The large land masses are called continents and the huge water bodies are called the ocean basins.
(iii) The highest mountain peak Mt. Everest is 8,848 meters above the sea level.
(iv) There are seven main continents which are:
(ii) There are two divisions of the earth’s surface:
The large land masses are called continents and the huge water bodies are called the ocean basins.
(iii) The highest mountain peak Mt. Everest is 8,848 meters above the sea level.
(iv) There are seven main continents which are:
Asia, Europe, Africa, North America, South America,Australia and Antarctica.
Hydrosphere:
i) The earth is a blue planet.
ii) More than 71% of the earth is covered with water.
iii) Hydrosphere consists of water in all its forms like the water present in rivers, lakes, oceans and glaciers.
(iv) More than 97% of the earth’s surface water is found in the oceans and is too salty for human use.
ii) More than 71% of the earth is covered with water.
iii) Hydrosphere consists of water in all its forms like the water present in rivers, lakes, oceans and glaciers.
(iv) More than 97% of the earth’s surface water is found in the oceans and is too salty for human use.
Oceans:
(i) Oceans are huge water-bodies and major of the hydrosphere.
(ii) The three chief movements of ocean waters are the waves, the tides and ocean currents.
(iii) Some major oceans in the world are the Pacific Ocean, the Atlantic Ocean, the Indian Ocean and the Arctic Ocean.
(ii) The three chief movements of ocean waters are the waves, the tides and ocean currents.
(iii) Some major oceans in the world are the Pacific Ocean, the Atlantic Ocean, the Indian Ocean and the Arctic Ocean.
Atmosphere:
(i) The envelope of air surrounding the earth is called the atmosphere.
(ii) It provides us with the air we breathe and protects us from the harmful effects of the sun’s rays.
(iii) The atmosphere has 78% nitrogen, 21% oxygen, and other gases like carbon and argon are 1% by volume.
(ii) It provides us with the air we breathe and protects us from the harmful effects of the sun’s rays.
(iii) The atmosphere has 78% nitrogen, 21% oxygen, and other gases like carbon and argon are 1% by volume.
Biosphere:
i) It is a narrow zone of contact between the land, water and air.
ii) All the living organisms including human beings are linked to each other and are dependent upon the biosphere for survival.
CONCLUSION:
The large land masses are called continents and the huge water bodies are called the ocean basins. (ii) The three chief movements of ocean waters are the waves, the tides and ocean currents. (iii) Some major oceans in the world are the Pacific Ocean, the Atlantic Ocean, the Indian Ocean and the Arctic Ocean.
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