CLASS-6 SUBJECT SOCIAL SCIENCE CHAPTER-5 MAJOR DOMAINS OF THE EARTH

 EVENTS CONVENT HIGH SCHOOL

18/11/2021      CLASS- 6   SESSION 2021-22
SUBJECT :  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?
(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 the 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?
Answers:
(a) Major Domains of the Earth

• Lithosphere
• Atmosphere
• Hydrosphere
• Biosphere

(b) Major continents of the Earth

• Asia
• Europe
• Africa
• North America
• South America
• Australia
• Antarctica

(c) Two continents lying entirely in the Southern hemisphere are:

• Australia and
• Antarctica

(d) Layers of (the) Atmosphere

• Troposphere
• Stratosphere
• Mesosphere
• Thermosphere
• Exosphere

(e) The Earth is called the blue planet because,

• it is the only planet (so far) which has water,
• it looks blue from the sky because of presence of water on it.

(f) The Northern Hemisphere is called the Land Hemisphere because of the following reasons:

• Greater part of the landmass lies in the Northern Hemisphere. It is more than 70% of the total area.
• Water bodies area is smaller in this Hemisphere. It is only 30% of the total area of the Northern Hemisphere.

(g) Importance of Biosphere

• Biosphere sustains all life forms.
• It provides food to them.
• It provides stage to all forms of life to act upon.
• It should be pollution free because pollution is injurious to life forms.

2. Tick the correct answer.

(a) The mountain range that separates Europe from Asia is
(i) the Andes                         (ii) the Himalayas                        (iii) the Urals.

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

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

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

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

Answers:
(a)—(iii)
(b)—(i)
(c)—(i)
(d)—(iii)
(e)—(ii).

3. Fill in the blanks.

1. The deepest point on the earth is ……….. in the Pacific Ocean.
2. The……… Ocean is named after a country.
3. The……… is a narrow contact zone of land, water and air that supports life.
4. The continents of Europe and Asia together are known as…………….
5. The highest mountain peak on earth is…………….

Answers:

1. Mariana Trench
2. Indian
3. Biosphere
4. Eurasia
5. Everest