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NCERT Solutions for Class 8 Geography Chapter 5 - Major Domains of the Earth

Q1. Answer the following questions briefly.
(a) What are the four major domains of the earth?
Ans: The four major domains of the earth are the lithosphere, hydrosphere, atmosphere and biosphere.NCERT Solutions for Class 8 Geography Chapter 5 - Major Domains of the Earth

(b) Name the major continents of the earth?
Ans: The seven major continents of the Earth are Asia, Europe, Africa, North America, South America, Australia and Antarctica.

(c) Name the two continents that lie entirely in the Southern Hemisphere.
Ans: The two continents that lie entirely in the Southern Hemisphere are Australia and Antarctica.

(d) Name the different layers of the atmosphere.
Ans: The different layers of the atmosphere are the troposphere, stratosphere, mesosphere, thermosphere and exosphere.

(e) Why is the earth called the ‘blue planet’?
Ans: The earth is called the ‘blue planet’ because more than 71 percent of the earth is covered with water.

Earth: Blue PlanetEarth: Blue Planet

(f) Why is the Northern Hemisphere called the Land Hemisphere?
Ans: The Northern Hemisphere called the Land Hemisphere because the greater part of Earth’s landmass lies in the Northern Hemisphere.

(g) Why is the Biosphere important for living organisms?
Ans: 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. All the living organisms including humans are linked to each other and to the biosphere for survival.


Q2. Tick the correct answers.
(a) The mountain range that separates Europe from Asia is
(i) the Andes
(ii) the Himalayas
(iii) the Urals
Ans: (iii) the Urals

(b) The continent of North America is linked to South America by
(i) an Isthmus
(ii) a Strait
(iii) a Canal
Ans: (i) an Isthmus 

(c) The major constituent of the atmosphere by percent is
(i) Nitrogen
(ii) Oxygen
(iii) Carbon dioxide
Ans: (i) Nitrogen

(d) The domain of the earth consisting of solid rocks is
(i) the Atmosphere
(ii) the Hydrosphere
(iii) the Lithosphere
Ans: (iii) the Lithosphere

(e) Which is the largest continent?
(i) Africa
(ii) Asia
(iii) Australia
Ans: (ii) Asia


Q3. Fill in the blanks.
(a) The deepest point on the earth is __________ in the Pacific Ocean.
Ans: Mariana Trench

The Depth of Mariana Trench is more than the height of Mt. EverestThe Depth of Mariana Trench is more than the height of Mt. Everest

(b) The _______________ Ocean is named after a country.
Ans: Indian

(c) The ___________ is a narrow contact zone of land, water and air that supports life.
Ans: Biosphere

(d) The continents of Europe and Asia together are known as ________________.
Ans: Eurasia

(e) The highest mountain peak on the earth is ______________.
Ans: Mount Everest

The document NCERT Solutions for Class 8 Geography Chapter 5 - Major Domains of the Earth is a part of the Class 6 Course Social Studies (SST) Class 6.
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FAQs on NCERT Solutions for Class 8 Geography Chapter 5 - Major Domains of the Earth

1. What are the major domains of the Earth?
Ans. The major domains of the Earth are the lithosphere, hydrosphere, atmosphere, and biosphere.
2. What is the lithosphere?
Ans. The lithosphere is the solid, outermost layer of the Earth that includes the crust and uppermost part of the mantle.
3. What is the hydrosphere?
Ans. The hydrosphere is the part of the Earth that includes all water in different forms, such as oceans, rivers, lakes, glaciers, and groundwater.
4. What is the atmosphere?
Ans. The atmosphere is the layer of gases that surrounds the Earth and is held in place by gravity. It protects the Earth from harmful radiation, regulates the temperature, and provides oxygen and other gases necessary for life.
5. What is the biosphere?
Ans. The biosphere is the part of the Earth where living organisms exist. It includes all living things, such as plants, animals, and microorganisms, and the ecosystems they form.
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