Ch – 5 Major Domains Of The Earth (Q-A)

Q: Answer the following questions briefly:

a) What are the four major domains of the earth ?

Ans: The four major domains of the earth are Lithosphere, Hydrosphere, Atmosphere and Biosphere.

b) Name the major continents of the earth.

Ans: The major continents of the earth are Asia, Europe, Australia, North America, South America, Antarctica and Africa.

c) Name the two continents that lie entirely in the Southern Hemisphere.

Ans: Australia and Antarctica are the two continents that lie entirely in the Southern Hemisphere.

d) Name the different layers of atmosphere.

Ans: The different layers of atmosphere are 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 per cent of the earth is covered with water.

f) Why is the Northern Hemisphere called the Land Hemisphere ?

Ans: As greater part of the land masses lie in the Northern Hemisphere, it is called Land Hemisphere.

g) Why is the biosphere important for the living organisms ?

Ans: The biosphere provides a contact between the land, water and air which is important for the survival of living organisms. Thus, biosphere is important for the living organisms.

Published by Priya Prakash

In the midst of winter, i found there was within me an invincible summer ~ Albert Camus

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