RBSE Class 7 Social Science Important Questions Geography Chapter 9 Life in the Deserts

Rajasthan Board RBSE Class 7 Social Science Important Questions Geography Chapter 9 Life in the Deserts  Important Questions and Answers. 

RBSE Class 7 Social Science Important Questions Geography Chapter 9 Life in the Deserts 

Multiple Choice Questions

Question 1. 
A region having extremely low and high temperature and scarce rainfall is a:
(a) grasslands 
(b) forest
(c) desert 
(d) mountain
Answer: 
(c) desert 

Question 2. 
The number of countries Sahara desert touches is:
(a) 10 
(b) 8
(c) 11 
(d) 5
Answer: 
(c)11 

Question 3. 
The temperature of Sahara desert during the day time is as high as:
(a) 48 degree Celsius
(b) 50 degree Celsius
(c) 58 degree Celsius
(d) 60 degree Celsius
Answer: 
(b) 50 degree Celsius

Question 4. 
The Sahara desert has witnessed a transformation due to discovery of:
(a) Coal 
(b) Iron Ore
(c) Oil 
(d) Copper
Answer: 
(c) Oil 

Question 5. 
The most important river of Ladakh is:
(a) Ganga 
(b) Yamuna
(c) Brahmaputra
(d) Indus 
Answer: 
(d) Indus 
 
Fill in the blanks

Question 1. 
Sahara has an area of ............ million sq km.
Answer: 
8.54

Question 2. 
In the depression where underground water reaches the surface, an.............. is formed.
Answer: 
oasis

Question 3. 
This oasis in Sahara and the ................ valley in Egypt supports settled population.
Answer: 
Nile

Question 4
................ are replacing camels in ................trade.
Answer: 
Trucks, Salt

Question 5  
................ one of the coldest inhabited places on earth is located in ladakh. 
Answer: 
Drass.

True/False

Question 1. 
The National Highway IA connects Leh to Kashmir Valley through the Zojila pass.
Answer: 
True.

Question 2. 
Manali-Leh highway crosses three passes.
Answer: 
False

Question 3. 
The finest cricket bats are made from the wood of the willow trees.
Answer: 
True.

Question 4. 
Desert experiences moderate climate.
Answer: 
False

Question 5. 
Vegetation of Sahara includes cactus, date palms and ocacia.
Answer: 
True.

Match the following

Column A	Column B
1. Chiru	(a) Buddhist religion
2. Willow tree	(b) Depression with water in deserts
3. Drass	(c) Coldest place
4. Gangri	(d) Shahtoosh
5. Gompas	(e) Cricket bat
6. Oasis	(f) Glacier

Answer:

Column A	Column B
1. Chiru	(d) Shahtoosh
2. Willow tree	(e) Cricket bat
3. Drass	(c) Coldest place
4. Gangri	(f) Glacier
5. Gompas	(a) Buddhist religion
6. Oasis	(b) Depression with water in deserts

Very Short Answer Type Questions

Question 1. 
What does the term ‘oasis’ denote?
Answer: 
Oasis is an area where the ground water comes up and makes a livable place in the hot desert.

Question 2. 
Define rain shadow.
Answer: 
Rain shadow is an area which is situated on the leeward side of the hill slope and gets lesser amount of rainfall. It is an area of small average rainfall. 

Question 3. 
Which animal is known as the ‘Ship of the Desert’?
Answer: 
Camel’ is known as the ‘Ship of the Desert’.

Question 4. 
Who are the Cramps?
Answer: 
The cramps are the Buddhist monasteries in Ladakh.

Question 5. 
What do you mean by “Wadi’?
Answer: 
Wadi’is a stream in the hot deserts.

Question 6. 
Who are ‘Nomads’?
Answer: 
The people of the remote area who travel in search of food and fodder are called as nomads.

Question 7. 
Who are Homo sapiens?
Answer: 
The Homo sapiens are the species of mankind. This is the species of human beings that exists today.

Question 8. 
Define deserts.
Answer: 
A.desert is an arid region charact-erised by extremely high or low temperature and has scarce vegetation.

Question 9. 
Which is the sole lake of fresh water in Sahara desert?
Answer: 
Lake Charel is the sole lake of fresh water in the Sahara desert.

Question 10. 
Where is Ladakh located?
Answer: 
Ladakh is located in the Himalayas on the eastern side of Jammu and Kashmir in India. It is a very cold and dry desert and located at a very good height.

Question 11. 
Name the animals found in the Sahara desert.
Answer: 
Camel, hyena, jackal, fox, scorpion are some of the common animals found in the Sahara desert.

Question 12. 
Name the animals found in the Ladakh.
Answer: 
Wild sheep, wild goat, special kind of dogs and Yak are found in the Ladakh desert.

Question 13. 
Which countries are a part of the Sahara desert?
Answer: 
The Sahara desert touches eleven countries which are Algeria, Chad, Egypt, Libya, Mali, Mauritania, Morocco, Niger, Sudan, Tunisia and Western Sahara.

Question 14. 
What is the area of the Sahara, desert?
Answer: 
The Sahara desert covers a large part of North Africa. It is the world’s largest desert. It has an area of around 8.54 million sq km.

Short Answer Type Questions

Question 1. 
How many types of deserts are found in the world?
Answer: 
On the basis of their latitudinal location, there are three types of deserts found in the world. They are as follows:

1. Hot desert in the tropical areas.
2. The local desert in the sub-tropical areas.
3. The cold desert in the polar areas.

Question 2. 
What are the m^jor agricultural activities carried out in the Ladakh desert?
Answer: 
The climate of the Ladakh desert does not allow agricultural activity. But still in the month of May, sowing of the crop and in the month of September, the process of harvesting takes place every year. The major crop of the region is wheat and in some other places barley is also grown. Different types of fruits are also grown in some patches.

Question 3. 
Write a notp on the climate of Sahara.
Answer: 
The climate in Sahara desert is very hot and dry. The availability of moisture decreases from north to south. The scarcity of water is the main identification of the region. Day and night temperature may vaiy from 50°c to freezing point. In some parts of the desert, world’s hottest temperature has been noticed.

Question 4. 
Why is it difficult for the people to live in deserts?
Answer: 
It becomes difficult for the people to five in deserts because:

1. There is no water to drink.
2. No grass for their cattle to feed.
3. No water to grow crops.
4. Extreme harsh temperatures.

Question 5. 
The cultural landscape of Sahara is undergiong change. How? 
Answer: 
Gleaming glass cased office buildings tower over mosques and superhighways crisscross the ancient camel paths. Trucks are replacing camels in the salt trade. Tuaregs are seen acting as guides to foreign tourists. Nomadic herdsmen are finding jobs in oil and gas operations.

Question 6. 
What mainly attracts tourists to Ladakh?
Answer: 
Tourism is a major activity in Ladakh. Several tourists from within India and abroad, visit to Buddhists monasteries which are famous for their traditional ‘gompas’. They also trek to see the meadows and glaciers and witness ceremonies and festivities which are important activities.

Long Answer Type Questions

Question 1. 
Answer the following:
(a) How does Ladakh get rainfall?
Answer: 
Rainfall in the Ladakh region is due to the height of the Greater Himalayas. The water laden winds strike there and cause rain. Winter is the season in which most of the rainfall takes place. In the winter season, moisture laden winds from the Mediterranean region are able to enter from the passes of the Great Himalayas and cause rain here. In the summer season, almost no rainfall occurs in the Ladakh region. In this season, most of the supply of water comes through the melting of the snow on higher altitudes.

(b) Write a note on the natural vegetation found in the Sahara Desert?
Answer: 
The Sahara desert has a very harsh climatic condition for the plants and animals. The vegetation which is found there, does not need much water to nurture them. The main vegetation found here is cactus, acacia, baobab trees, etc. The plants are having deep roots, small leaves or no leaves. Most of the vegetation found here belongs to the thorny category of plants. Some parts of the deserts where some amount of water is available or a place where oasis are found, plam trees can be seen. 

Question 2. 
What are the main differences between the Sahara and Ladakh deserts? 
Answer:

Sahara Desert	Ladakh Desert
(i) Rainfall: Rainfall in the Sahara region is very low which is less than 30 cm.	Rainfall: Rainfall in the Ladakh desert occurs due to the western disturbances. The moisture laden winds manage to enter into the Ladakh range from various passes.
(ii) Temperature: Temperature in the Sahara desert is very high, hot and dry winds blow in this area.	Temperature: Temperature is very low in the Ladakh desert because of its altitude from the sea level.
(iii) Availability of water: In general, water is not available in abundance. The availability of rivers is not very good that is because scarcity of water is the major problem here.	Availability of water: Melting of snow is the main source of water in the Ladakh desert. Normally, water is not a big problem for the native people.
(iv) Flora and fauna: In the Sahara desert, camel is the common animal which is also known as the ship of the desert. Jackal, hyenas and wild foxes are the other common species of animals found here.	Flora and Fauna: Very unique type of flora and fauna is found here. Yak is the common animal which is found in this types of climate only.