Major Domains of the Earth Class 6 Notes Social Science Geography Chapter 5. NCERT Solutions for Class 6 Social Science Geography Chapter 5 Major Domains of the Earth
There are three main components of the environment – Lithosphere, Atmosphere and Hydrosphere.
The lithosphere forms the solid part of the Earth and contains landforms like plateaus, mountains, plains and valleys. The hydrosphere is the next layer and covers three-fourth of the Earth in the form of water bodies. The Atmosphere forms a protective layer and shields the Earth from the intense sun rays. The biosphere is the last domain of the Earth and is made up of all the plants and animals and all non-living things.
NCERT Solutions for Class 6 Social Science Geography Chapter 5 Major Domains of the Earth
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1. Answer the following questions briefly.
(a) What are the four major domains of the earth?
Sol : The four major domains of the Earth are – Lithosphere, Atmosphere, Hydrosphere and Biosphere.
(b) Name the major continents of the earth.
Sol : There are 7 major continents of the earth. They are:
- Asia
- Europe
- Africa
- North America
- South America
- Australia
- Antarctica
(c) Name the two continents that lie entirely in the Southern Hemisphere.
Sol : Two continents that lie entirely in the southern hemisphere are – Australia and Antarctica.
(d) Name the different layers of the atmosphere.
Sol : The different layers of the atmosphere are :
- Troposphere
- Stratosphere
- Mesosphere
- Thermosphere
- Exosphere
(e) Why is the earth called the ‘blue planet’?
Sol : The earth is called the blue planet, because 71% of the earth is covered with water and the remaining 29% makes up the land.
(f) Why is the Northern Hemisphere called the Land Hemisphere?
Sol : The northern hemisphere is called land hemisphere, because a major part of landmass lies in it.
(g) Why is the Biosphere important for living organisms?
Sol : The Biosphere is important for living organisms because life exists here due to the presence of 3 major components- land, air and water.
2. Tick the correct answers.
(a) The mountain range that separates Europe from Asia is
(i) the Andes (ii) the Himalayas (iii) the Urals
Sol : (iii) the Urals
(b) The continent of North America is linked to South America by
(i) an Isthmus (ii) a Strait (iii) a Canal
Sol : (i) an Isthmus
(c) The major constituent of the atmosphere by per cent is
(i) Nitrogen (ii) Oxygen (iii) Carbon dioxide
Sol : (i) Nitrogen
(d) The domain of the earth consisting of solid rocks is
(i) the Atmosphere (ii) the Hydrosphere (iii) the Lithosphere
Sol : (iii) the Lithosphere
(e) Which is the largest continent?
(i) Africa (ii) Asia (iii) Australia
Sol : (ii) Asia
3. Fill in the blanks.
(a) The deepest point on the earth is _____________ in the Pacific Ocean.
Sol : The deepest point on the earth is Mariana Trench in the Pacific Ocean.
(b) The _____________ Ocean is named after a country.
Sol : The Indian Ocean is named after a country.
(c) The _____________ is a narrow contact zone of land, water and air that supports life.
Sol : The Biosphere is a narrow contact zone of land, water and air that supports life.
(d) The continents of Europe and Asia together are known as _____________.
Sol : The continents of Europe and Asia together are known as Eurasia.
(e) The highest mountain peak on the earth is _____________.
Sol : The highest mountain peak on the earth is Mount Everest.
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