NCERT Class 6 Geography Chapter 5 - Major Domains of the Earth

Chapter 5 - Major Domains of the Earth

Question 1: Answer the following questions briefly.
a) What are the four major domains of the earth?
b) Name the major continents of the earth.
c) Name the two continents that lie entirely in the Southern Hemisphere.
d) Name the different layers of atmosphere.
e) Why is the Earth called the ‘blue planet’?
f) Why is the Northern Hemisphere called the Land Hemisphere?
g) Why is the Biosphere important for living organisms?
Answer:

a) The four domains of the Earth are Biosphere, Lithosphere, Hydrosphere and Atmosphere.

b) The major continents of the Earth are Asia, Africa, North America, South America, Antarctica, Europe and Australia.

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

d) The different layers of atmosphere are
→ Troposphere
→ Stratosphere
→ Mesosphere
→ Thermosphere
→ Exosphere

e) The Earth is called the blue planet as more than 71 per cent of the earth is covered with water and 29 per cent is with land.

f) The Northern hemisphere is called Land Hemisphere, because a major part of landmass lies in it.

g) 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 the biosphere for survival.

Question 2: Tick the correct answers.
a) The mountain range that separates Europe from Asia is
i) the Andes
ii) the Himalayas
iii) the Urals
Answer:
iii) the Urals

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

c) The major constituent of atmosphere by per cent is
i) Nitrogen
ii) Oxygen
iii) Carbon dioxide
Answer:
i) Nitrogen

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

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

Question 3: Fill in the blanks.
a) The deepest point on the earth is _____________ in the Pacific Ocean.
b) The _____________ Ocean is named after a country.
c) The _____________ is a narrow contact zone of land, water and air that supports life.
d) The continents of Europe and Asia together are known as _____________.
e) The high
est mountain peak on the earth is _____________.
Answer:
a) The deepest point on the earth is Mariana Trench in the Pacific Ocean.
b) The Indian Ocean is named after a country.
c) 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 Eurasia.
e) The highest mountain peak on the earth is Mount Everest.

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