Class 7 NCERT Solutions for Social Science (Geography) Chapter – 10 Life in the Deserts

Life in the Deserts

Text Book Page No. 73

Question 1.
Scientists have actually found skeletons of fish in this desert. What could have happened?

Answer:
Earlier Sahara must have been a green and fertile region. But excessive and intensive use of land for cultivation, large-scale deforestation, excessive pollution of land, air, and water, and soil erosion could have led to the conversion of land into a desert. Gradually the green flourishing region must have converted into yellow barren land.

Exercise Questions and Answers

Question 1.
Answer the following questions :

(a) What are the two types of deserts found in the world?
Answer:

  1. Hot desert
  2. Cold desert

(b) In which continent is the Sahara desert located?
Answer:

Africa

(c) What are the climatic conditions of the Ladakh desert?
Answer:

The climatic conditions of the Ladakh desert are cold and dry.

(d) What mainly attracts tourists to Ladakh?
Answer:

  1. Gompas
  2. Meadows and glaciers
  3. Ceremonies and festivities of local people.

(e) What type of clothes the people of the Sahara desert wear ?
Answer:

People of the Sahara desert wear heavy robes as protection against dust storms and hot winds.

(f) Name the trees that grow in Ladakh.
Answer:

  1. Willows
  2. Poplars
  3. Apples
  4. Apricots
  5. Walnuts

Question 2.
Tick the correct answer.

(1) Sahara is located in which part of Africa
(a) Eastern
(b) Northern
(c) Western
Answer:
(b) Northern

(2) Sahara is what type of desert
(a) Cold
(b) Hot
(c) Mild
Answer:
(b) Hot

(3) The Ladakh desert is mainly inhabited by
(a) Christians and Muslims
(b) Buddhists and Muslims
(c) Christians and Buddhists
Answer:
(b) Buddhists and Muslims

(4) Deserts are characterized by
(a) Scanty vegetation
(b) Heavy precipitation
(c) Low evaporation

Answer:

(c) Low evaporation

(5) Hemis in the Ladakh is a famous
(a) Temple
(b) Church
(c) Monastery
Answer:
(c) Monastery

(6) Egypt is famous for growing
(a) Wheat
(b) Maize
(c) Cotton
Answer:
(c) Cotton

Question 3.
Match the following.

OasisLibya
BedouinsMonastery
OilGlacier
GangriDepressions with water
LamayuruSahara

Answer:

OasisDepressions with water
BedouinsSahara
OilLibya
GangriGlacier
LamayuruMonastery

Give reasons

Question 4.

(1) There is scanty vegetation in the deserts.
Answer:

Because of extreme harsh temperatures and little rainfall.

(2) People of the Sahara desert wear heavy robes.
Answer:

To protect themselves from the dust storms and hot winds.

Map skills

Question 5.

(1) On the outline map of Africa, mark the Sahara desert.
Answer:

NCERT Solutions for Class 8 Social Science geography 10 img 1

(2) On the outline map of India mark the Karakoram range, Zaskar range, Ladakh and Zoji La pass.
Answer:

NCERT Solutions for Class 8 Social Science geography 10 img 2

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