NCERT Solutions Class 6th Social Science Geography Chapter – 5 Major Domains of the Earth Notes Are there 2 or 3 domains?, What is the hottest planet?, Which planet is red planet?, Who Named the Earth Earth?, Which planet is called green planet?, What is the Earth called?, What planet is called blue?, What is a domain name used for?, What are the 4 types of domain?, What is the end of a domain called?, Can you have 2 domain?, What is a Level 3 domain?, Can you have a 2 letter domain?, Why are the 3 domains important?, Which of the 3 domains are oldest?, Is Bacteria a domain of life?
NCERT Solutions Class 6th Social Science Geography Chapter – 5 Major Domains of the Earth
Chapter – 5
Major Domains of the Earth
Notes
Lithosphere – The surface of the earth is a complex zone in which three main components of the environment meet, overlap and interact. This solid portion of the earth on which we live is called the lithosphere.
Atmosphere – The gaseous layer that surrounds the earth, is the atmosphere.
Hydrosphere – Water covers a very big area of the earth’s surface and this area is called the hydrosphere.
Biosphere – The Biosphere is the narrow zone where we find land water and air together which contains all forms of life.
Lithosphere –The solid portion of the earth is called the lithosphere. It comprises the rocks of the earth’s crust and the thin layers of soil that contain nutrient elements which sustain organisms.
Continent – There are two main divisions of the earth’s surface. The large landmasses are known as the continent.
Ocean Basins – There are two main divisions of the earth’s surface. The large landmasses are known as the continent and the huge water bodies are called the ocean basins.
Continent – There are seven major continents. These are separated by large water bodies. These continents are- Asia, Europe, Africa, North America, Australia and Antarctica. Look at the map of the world and notice that the greater part of the land mass lies in the northern hemisphere.
Asia – Asia is the largest continent. It covers about one- third of the total land area of the earth. The continent lies in the eastern hemisphere. The tropic of cancer passes through this continent.
Europe – Europe is much smaller than Asia. The continent lies to the west of Asia. The arctic circle passes through it. It is bound by water bodies on three sides. Look at the map of the world and locate it.
Africa – Africa is the world’s second largest continent after asia. The equator or 00 latitude runs almost through the middle of the continent. A large part of africa lies in the northern hemisphere. Look it the you will find that it is the only continent through which the tropic of cancer, the equator and the tropic of capricorn pass
Nile – The continent is bound on all sides by oceans and seas. Look at the world map. you will notice that the world’s longest river the nile, flows through africa. Notice were the equator, The tropic of cancer and the tropic of capricorn pass in the map of africa.
North America – North america is the 3rd largest continent of the world. It is linked to south america by a very narrow strip of land called the isthmus of panama. The continent lies completely in the northern and western hemisphere. Three oceans surround this continent.
South America – South America lies mostly in the Southern Hemisphere. Which two oceans surround it on the east and the west? The Andes, world’s longest mountain range, runs through its length from north to south. South America has the world’s largest river, the Amazon.
Australia – Australia is the smallest continent that lies entirely in the Southern Hemisphere. It is surrounded on all sides by the oceans and seas. It is called an island continent.
Antarctica – Antarctica, completely in the Southern Hemisphere, is a huge continent. The South Pole lies almost at the centre of this continent. As it is located in the South Polar Region, it is permanently covered with thick ice sheets. There are no permanent human settlements. Many countries have research stations in Antarctica. India also has research stations there. These are named as Maitri and Dakshin Gangotri.
Hydrosphere – The earth is called the blue planet. More than 71 per cent of the earth is covered with water and 29 per cent is with land. Hydrosphere consists of water in all its forms. As running water in oceans and rivers and in lakes, ice in glaciers, underground water and the water vapour in atmosphere, all comprise the hydrosphere.
Oceans – Oceans are the major part of hydrosphere. They are all interconnected. The ocean waters are always moving. The three chief movements of ocean waters are the waves, the tides and the ocean currents. The five major oceans are the Pacific Ocean, the Atlantic Ocean, the Indian Ocean, the Southern Ocean and Arctic Ocean, in order of their size.
Atmosphere – The earth is surrounded by a layer of gas called the atmosphere. This thin blanket of air is an integral and important aspect of the planet. It provides us with the air we breathe and protects us from the harmful effects of sun’s rays.
Biosphere – The Domain Of Life – The biosphere is the narrow zone of contact between the land, water and air. It is in this zone that life, that is unique to this planet, exists. There are several species of organisms that vary in size from microbes and bacteria to huge mammals. All the living organisms including humans are linked to each other and to biosphere for survival.
Do you know? – Edmund Hillary (New Zealand) and Tenzing Norgay Sherpa (India) were the first men to climb the highest mountain peak Mt. Everest on the planet earth on 29th May, 1953. Junko Tabei (Japan) was the first woman to reach the summit on 16th May, 1975. The first Indian woman to climb the highest peak on 23rd May, 1984 was Bachendri Pal.
NCERT Solutions Class 6th Geography All Chapters Notes
