RBSE Solutions for Class 9 Rajasthan Adhyayan Chapter 2 Physical Environment of Rajasthan are part of RBSE Solutions for Class 9 Rajasthan Adhyayan. Here we have given Rajasthan Board RBSE Class 9 Rajasthan Adhyayan Chapter 2 Physical Environment of Rajasthan.
| Board | RBSE |
| Textbook | SIERT, Rajasthan |
| Class | Class 9 |
| Subject | Rajasthan Adhyayan |
| Chapter | Chapter 2 |
| Chapter Name | Physical Environment of Rajasthan |
| Number of Questions Solved | 56 |
| Category | RBSE Solutions |
Rajasthan Board RBSE Class 9 Rajasthan Adhyayan Chapter 2 Physical Environment of Rajasthan
TEXTBOOK QUESTIONS SOLVED
Multiple Choice Questions
Question 1.
Area of Rajasthan is
(a) 3.5 lakh sq km
(b) 3.4 lakh sq km
(c) 3.6 lakh sq km
(d) 3.2 lakh sq km
Answer:
(b).
Question 2.
Which position does Rajasthan hold in India as regards its area?
(a) First
(b) Second
(c) Third
(d) Fourth
Answer:
(a).
Question 3.
What is the number of divisions in Rajasthan?
(a) 5
(b) 6
(c) 7
(d) 9
Answer:
(c).
Question 4.
As regards area the largest district of Rajasthan is
(a) Jaipur
(b) Jaisalmer
(c) Kota
(d) Jodhpur
Answer:
(b).
Question 5.
The highest peak of Aravalli is
(a) Taragarh
(b) Achalgarh
(c) Guru Shikhar
(d) Zaraga
Answer:
(c).
Question 6.
What is the direction of the extent of the Aravalli mountain ranges in Rajasthan?
(a) South-West to North-East
(b) South-East to North-West
(c) North to South
(d) West to East
Answer:
(a).
Question 7.
Which districts fall in the Hadoti plateau?
(a) Udaipur-Dungarpur-Banswara
(b) Kota-Bundi-Baran-Jhalawar
(c) Bhilwara-Tonk-Chittorgarh-Bundi
(d) Ajmer-N agaur-Pali-J odhpur
Answer:
(b).
Question 8.
Kali Sindh river is the auxiliary of the river
(a) Banas
(b) Mahi
(c) Luni
(d) Chambal
Answer:
(d).
Question 9.
Which is not the salt water lake?
(a) Sambhar
(b) Pichola
(c) Didwana
(d) Lunkaransar
Answer:
(b).
Question 10.
The district of Rajasthan receiving the maximum rainfall is
(a) Kota
(b) Banswara
(c) Sirohi
(d) Alwar
Answer:
(b).
Very Short Answer Type Questions
Question 1.
What is the maximum length and breadth of Rajasthan from east to west and North to South?
Answer:
Length of Rajasthan from North to South is 826 km and the breadth from east to west is 869 km.
Question 2.
Name any three salt water lakes.
Answer:
Three salt water lakes are:
- Sambhar lake
- Didwana lake
- Pachprada lake
Question 3.
What is the total area of Rajasthan?
Answer:
The total area of Rajasthan is 3,42,239 sq km.
Question 4.
From where does the river Sabarmati originate?
Answer:
River Sabarmati originates from North-West part of Udaipur.
Question 5.
What is the nature of climate of Rajasthan?
Answer:
Rajasthan has dry (Arid) to semi-moisture monsoon climate.
Question 6.
What is Mawath?
Answer:
Most parts of Rajasthan usually get winter rainfall which is called Mawath. This winter rain occurs usually due to the entrance of the ‘Mediterranean Lows’.
Short Answer Type Questions
Question 1.
Which districts fall under the Western Marusthali region?
Answer:
The districts falling under the Western Marusthali region are: Barmer, Jaisalmer, Bikaner, Jodhpur, Pali, Jalore, Nagaur, Sikar, Churn, Jhunjhunu, Hanumangarh and Ganganagar.
Question 2.
Write about the rivers of the Arabian sea Drainage system of Rajasthan.
Answer:
The rivers emptying into the Arabian sea are Luni, Mahi and Sabarmati.
Question 3.
What are the causes of scarce rainfall in Rajasthan?
Answer:
The causes of scarce rainfall in Rajasthan are:
- The Aravalli mountain ranges lie parallel to the Arabian sea mountain branch, hence the monsoon passes over it without shedding rains.
- Monsoons arising from the Bay of Bengal become quite weak as they reach Rajasthan.
- The Aravalli mountain ranges have less of height and vegetation hence the rainfall is adversely affected.
Question 4.
Which are the main physiographical regions of Rajasthan?
Answer:
The main physiographical regions of Rajasthan are:
- Western Marusthali region
- Aravalli Mountain region
- Eastern Plain region
- South-East Plateau (Hadoti Plateau)
Question 5.
Which are the main sweet water lakes of Rajasthan?
Answer:
The main sweet water lakes of Rajasthan are:
- Rajasthan lake
- Jaisamand lake
- Pichholalake
- Fatehsagar lake
- Ana Sagar lake
- Pushkar lake
- Siliserh lake
Question 6.
Write any four characteristics of the climate of Rajasthan.
Answer:
Four characteristics of Rajasthan climate are:
- Mainly dry and semi-dry.
- Insufficient and uncertainty of rains.
- Unequal distribution of rains
- Maximum of rainfall between June to September months.
Long Answer Type Questions
Question 1.
Describe briefly the physiographical regions of Rajasthan.
Answer:
Physiographical Regions of Rajasthan are:
- Western Thar Desert Region.
- Aravalli Mountainous Region.
- Eastern Plain Region.
- South-Eastern Plateau (Pleateau of Hadoti).
1. Western Marusthali Region: Western region of the Aravalli ranges of Rajasthan is the arid and semi arid Marusthali region. It is known as the Thar Marusthal because of its own peculiarities. It covers the districts of Jaisalmer, Bikaner, Jodhpur, Pali, Jalore, Nagaur, Sikar, Churu, Jhunjhunu, Hanumangarh and Ganganagar. This region is further divided into four parts because of its diverse relief feature in different parts and they are:
- Dry-sandy or Marusthali
- Luni-Jawai Basin
- Shekhawati Region
- Ghaggar Plain
(1) Marusthali Region:
It covers the western parts of Churu and Jodhpur districts besides the districts of Jaisalmer and Bikaner. It is the dry Marusthali region and receives the annual average rainfall less than 25 cm. It has a vast extent of sandy domes.
(2) Luni-Jawai Basin:
It is a semi-arid region where Luni and its main Jawai and other auxiliary rivers flow. It covers the districts of Pali, Jalore and Jodhpur and the Western parts of Nagaur district. It is a river based plain, and is also known as the Luni Basin.
(3) Shekhawati Region:
It is popularly known as the Bagar region. It is spread over the districts of Jhunjhunu, Sikar and Churu and the northern part of the Nagaur district. It is a sandy region and it has sandy domes of less elevation. It has many salt water pits, such as Didwana, Degana, Sujangarh, Talchappar, Parihara, Kuchaman, etc.
(4) Ghaggar Plain:
The plain region of Ganganagar and Hanumangarh district has come into existence as a result of floods in the river Ghaggar. Presently the Ghaggar river is called the Dead River because its water flow surface is not regular, but during the rainy season it is flooded. It is in fact the ancient vedic period Saraswati river which has become extinct.
2. Aravalli Mountainous Region:
Aravalli is the oldest mountain range in the world. It runs diagonally from South-West to North-East in the state. The
mountain ranges stretch from Delhi in the North to Palampur in Gujarat covering a distance of about 692 km. It is spread over the seven districts of the state — Sirohi, Udaipur, Rajsamand, Ajmer, Jaipur, Dausa and Alwar.
The Aravalli Mountain region has its three sub- divisions:
- Southern Aravalli Region
- Central Aravalli Region
- Northern Aravalli Region
(1) Southern Aravalli Region:
It includes Sirohi, Udaipur and Rajsamand districts. It has Guru Shikhar mountain, the highest peak of Rajasthan. It is 1722 m high.
(2) Central Aravalli Region:
It has extent mainly in Ajmer district. This region has mountain ranges as well as narrow valleys and plain surface.
(3) Northern Aravalli Region:
It has its extent mainly in Jaipur, Alwar and Dausa districts. Hills in this region have height varying between 450 m to 750 m.
3. Eastern Plain Region:
The eastern part of Rajasthan is plain. It covers the plain areas of Bharatpur, Alwar, Dhaulpur, Karauli, Sawai Madhopur, Jaipur, Dausa, Tonk and Bhilwara districts. It is the river basin region. It has three sub-regions:
- Banas-Baanganga Basin
- Chambal Basin
- Central Mahi Basin or Chhappar Plain
4. South-Eastern Plateau Region and Hadauti:
It is the extension of the Malwa plateau and is stretched over Kota, Bundi, Jhalawar and Baran districts. The height of this region is 500 m and there are many small mountain ranges and among them the Bundi, and the Mukandara hills are important. River Chambal and its main auxiliaries — Kali Sindh, Parvan and Parvati rivers flow through this region and they make the land cultivable.
Question 2.
Explain the Aravalli mountain range region.
Answer:
Aravalli mountain range is the unique geographical region of Rajasthan. Aravalli is the most ancient mountain range of the world, which runs diagonally in the state from North-East to South-West. It has its extent of about 692 km originating from Delhi in the North of Palampur in Gujarat. It extends over seven districts of the state, namely Sirohi, Udaipur, Rajsamand and Ajmer, Jaipur, Dausa and Alwar.
The Aravalli Mountain Range is divided into three sub-regions:
- South Aravalli Region
- Central Aravalli Region
- North Aravalli Region
(1) South Aravalli Region:
It includes Sirohi, Udaipur and Rajsamand districts. It is totally a mountainous region. Herein the Aravalli ranges are highly dense and elevated. There are many high peaks of the Aravalli ranges here. It has ‘Guru shikhar’, the highest mountain peak of Rajasthan. Its height is 1722 m and is located in the Mt. Abu area of Sirohi district. Other main high mountain peaks are Ser (1597 m), Achalgarh (1380 m) and Rishikesh (10l!7 m). The Udaipur Rajsamand region has Jaraga mountain, the highest peaik. It is 1431 m high. Other ranges of this area are Kumbhalgarh (1224 m) Lilagarh (874 m) Kamalnath hills (1001 m) and Sajjangarh (938 m). To the north-west of Udaipur there is a plateau between Khumbhalgarh and Gogunda, known as ‘Bhorat Plateau’.
(2) Central Aravalli Region:
It lies mainly in Ajmer district. This area includes mountain ranges as well as narrow valley and plain land. Taragarh (870 m) in the south-west part of Ajmer and Sarpilakar mountain ranges in the west are known as ‘Naag hills’ (795 m). In Beawar tehsil there are four passes of Aravalli ranges, namely Bur, Parweria and Shivpura ghat, Sura ghat pass and Debari.
(3) Northern Aravalli Region:
It has its extent over Jaipur, Dausa and Alwar districts. Here the Aravalli ranges are not continuous but are irregular. This region has Shekhawati hills, Torawati hills and Jaipur and Alwar hills. Average height of the hills varies between 450 m to 750 m. Its main high peaks are Raghunathgarh (1055 m) in Sikar district, Bairath (792 m) in Alwar and Kho (920 m) in Jaipur. Other high peaks in this region are Jaigarh, Nahargarh, Alwar fort and Bilali.
Question 3.
Describe the Eastern Plain region and the Plateau region.
Answer:
I. The Eastern Plain Region:
The eastern region of Rajasthan is a plain area which lies to the east of Aravalli. It includes the plain areas of Bharatpur, Alwar, Dhaulpur, Karauli, Swaimadhopur, Jaipur, Dausa, Tonk and Bhilwara districts. It is the river basin region made of the mud deposited by the rivers. This plain region has three sub-regions:
- Banas-Banganga Basin
- Chambal Basin
- Central Mahi-Basin and Chhappan Plain
(1) Banas-Banganga Basin:
It is a vast plain made by the mud deposited by the Banas and its auxiliary rivers such as Banganga, Berach, Kothari, Dane, Sahodara, Manasi, Dhundh, Bandy, Morel, Vagan, Gambhir, etc. This plain region is between 150 m to 300 m high from the sea level and its steep is eastward.
(2) Chambal Basin:
It includes Kota, Sawai Madhopur, Karauli and Jodhpur districts. Kota falls in Hadauti, but it has the Chambal plain region.
(3) Central Mahi-Basin and Chhappan Plain:
It extends over Dungarpur, Banswara and Pratapgarh districts from south-east Udaipur. The river Mahi flows through it. This river arises from Madhya Pradesh, passes from here and drains into the Bay of Khabhat. It is an uneven region and there are small hills all around. As it is the hilly region, it is known as ‘Bangar’ in the local dialect. There is a group of 56 villages between Pratapgarh and Banswara; hence it is also known as the Chhappan Plain.
II. South-East Plateau Region or Hadauti:
South-East part of Rajasthan is a plateau region which is known as the Hadauti Plateau. It is the extension of the Malwa plateau and it has its spread over Kota, Bundi, Jhalwar and Baran districts. The average height of this area is 500 m and there are many small sized mountain ranges. Among them the Mukandara and the Bu’ndi hills are prominent. The river Chambal and its auxiliaries as Kali Sindh, Parwan and Parvati rivers flow through it and the plains made by the mud deposited by these rivers are most suitable for agriculture.
Question 4.
Give a brief description of the drainage system or rivers of Rajasthan.
Answer:
Drainage system means the draining of rivers and their subsidiaries. Chambal is the only perennial river in Rajasthan. It is the Aravalli mountain ranges which determine the drainage system of Rajasthan. These mountain ranges divide the rivers system of Rajasthan into two parts, besides the Inland rivers.
Thus the rivers of Rajasthan are grouped into three parts:
- The Bay of Bengal Drainage system.
- The Arabian Sea Drainage system.
- The Inland Drainage system.
1. The Bay of Bengal Drainage System, i.e. the rivers draining into the Bay of Bengal. These rivers are Chambal, Banas, Banganga and their subsidiary rivers.
(а) Chambal River:
It was known as the Chamanvati in the ancient period. It originated from Janapaw hill near Manpur (Mhow), Madhya Pradesh. It enters Rajasthan near Chaurasigarh (Chittorgarh district), crosses the, Kota- Bundi districts, passes through Sawai Madhopur, Karauli and Dhaulpur districts and merges finally with Yamuna river. Gandhi Sagar, Jawahar Sagar and Rana Pratap sagar dams, and Kota Barrage have been constructed on the river Chambal. Its main subsidiary rivers are Banas, Kali Sindh and Parvati.
(b) Banas River:
It originates in Khamnor hills of the Aravalli range, which is 5 km far from Kumbhalgarh. It flows southwards from Kumbhalgarh, Gogunda plateau, crosses Nathdwara, Rajsamand, Rail Magara, runs through Chittorgarh, Bilwara, and Tonk districts, then merges with Chambal in Sawai Madhopur. River Banas is also known as the Van-ki-Asha. Its main auxiliary rivers are Berach, Kothari, Khari, Mainal, Bandy, Dhundh and Morel.
(c) Kali-Sindh River:
It originates near Devas in Madhya Pradesh, flows through Jhalawar and Baran districts and merges with Chambal near Nanera. Its main subsidiaries are Parvan, Ujaar, Niwaz and Aahu.
(d) Parvati River:
It arises in the Sihore area of Madhya Pradesh, runs through Baran district and merges with the Chambal river near Palia in Sawai Madhopur district.
(e) Vapani (Brahmani) River:
Originating near Haripur village in Chittorgarh district, the river merges with Chambal near Bhainsorgarh.
(f) Maze River:
It originates in Bhilwara district and merges with river Chambal near Lakheri in Bundi.
(g) Banganga River:
It originates in the Bairath hills of Jaipur district. From here it turns eastwards and flows through Sawai Madhopur district and then Bharatpur district.
2. The Arabian Sea Drainage System:
The Rivers Luni, Alahi and Sabarmati drain into the Arabian sea.
(a) Luni River:
It originates in the Nag hill of Ajmer, then flows through Jodhpur, Pali, Barmer and Jalore covering the distance of 320 km, before draining, finally, into the Rann of Kutchh.Jt is the rainy season river. Its special feature is that its water remains sweet till Balotara and after that it became saline. Its subsidiaries are Jawai, Leelari, Muhari, Sukhari-I, II and III, Bari I and II and Saagi.
(b ) Mahi River:
It originates in Mhow hills of Madhya Pradesh, enters Banswara in Rajasthan, forms the boundary of Dungarpur-Banswara districts, enters Gujarat and then drains into the Bay of Khambhat. Mahi Bajaj Sagar Dam has been built on it near Banswara. Its main subsidiaries are Som, Jakham, Annas, Chap and Moren.
(c) Sabarmati River:
It originates in the south-west Udaipur, flows through Udaipur and Sirohi districts, and enters Gujarat to drain into the Bay of Khambhat.
3. Inland Drainage System:
There are small rivers in Rajasthan, which flow through a small distance and then disappear in sand or mud. They are known as the inland drainage rivers. They are Katali, Sabi and Kakani rivers.
(a) Katali River:
It arises from the Khandela hills of Sikar district, flows through Sikar and Jhunjhunu districts upto 100 km and disappears in the sands.
(b) Sabi River:
It originates in the Sewar hills of Jaipur, passes through Banasur, Behror, Kishangarh, Mandavar and Tijara tehsils and then becomes extinct in Haryana.
(c) Kalani or Kakneya River:
It originates in Kotari village, 27 km south of Jaisalmer, flows a few km and then disappears.
Ghaggar River: It is the river which is considered to be the remnant of the ancient Sarswati river. It originates in Haryana, passes through Hanumangarh, Ganganagar, Suratgarh and Anupgarh, to end, finally, in Pakistan. It receives water during the rainy season and spreads it all over. Presently this river is known as ‘Naati’ in the local dialect. Besides the above Inland rivers, rivers of Banganga and Sambhar lake areas also fall in this category.
Question 5.
Describe the climate of Rajasthan season wise.
Answer:
The nature of climate of Rajasthan is well understood with reference to three seasons:
- Summer Season (March to Mid June)
- Rainy Season (Mid-June to September)
- Cold/Winter Season (October to February)
1. Summer Season (March to Mid June):
It begins in March when the sun, at this time is in Northwards direction and the temperature continues rising steadily. During May-June months the whole of Rajasthan experiences high temperature. The temperature touches 40°C especially in Jaisalmer, Barmer, Bikaner, Jodhpur, and Churu districts of Western Rajasthan. In the eastern Rajasthan, the districts of Jaipur, Dausa, Alwar, Sikar, Ajmer, Tonk, Chittorgarh, Dungarpur and Banswara, temperature varies between 30°C to 40°C.
In the elevated parts of the southern Aravalli, temperature is less because of high altitude. Even Hadauti experiences heat and the temperature remains between 36°C to 40°C. It is a period of hot and sandy winds. In the arid regions, temperature falls. There is a less of moisture in the air and the whole state in the grip of heat.
2. Rainy Season (Mid-June to September):
When the whole state is in the grip of scorching heat by mid- June, there occurs a change in the air pressure and direction of the winds. At the same time the monsoon winds arise from the Indian ocean. By the end of June or the first week of July the monsoons become active in the south and south-east and eastern Rajasthan. Rajasthan, comparatively gets less of monsoon rains because:
- The Aravalli mountain ranges lie parallel to the monsoon branch of the Arabian sea. Thus the monsoons without being intercepted, pass over Rajasthan without giving rains.
- The moisture laden monsoons from the Bay of Bengal become weak by the time they reach Rajasthan.
- Rains are also adversely affected due to comparatively less height of the Aravalli mountain ranges and scarce vegetation. Rajasthan gets rains mostly from June to September.
The Western Rajasthan is Marusthali. Here the rainfall is less than 40 cm. On the contrary the eastern and south¬eastern areas get heavy rainfall. The regions surrounding Abu Mountains get maximum rainfall upto 150 cm. Kota, Jhalawar Baran,Chittorgarh and Sirohi receive mean annual rainfall of 90 cm. The districts getting minimum rainfall— between 10 cm to 25 cm in Rajasthan — are Jaisalmer, Barmer and Ganganagar.
3. Cold/Winter Season (October to February):
The rainy season does not terminate abruptly. It starts retreating from October. During this period the maximum temperature is recorded between 30° C to 50° C and minimum upto 20° C. While retreating, the monsoons shower lightly over some parts.
In fact, the Winter season begins in Rajasthan in December, because this is the time when the sun is in southward direction. The North-West cool winds start blowing over Rajasthan.
At the same time the mediterranean cyclones enter the state, bringing some rainfall known as the Mawath. This rainfall is very useful for the Rabi crops. In the month of January, the Rainy season is in its full swing. The temperature varies between 5° C to 15° C. Temperature in Churu, Falaudi touches zero degree and Barmer, Kota, Bundi and Southern Madhopur districts, during the same period, have more than 10°C temperature.
ADDITIONAL QUESTIONS SOLVED
Multiple Choice Questions
Question 1.
The districts falling in the Kota division are
(а) Kota-Bundi-Baran-Jhalawar
(b) Bharatpur-Dhaulpur, Karauli and Sawai Madhopur
(c) Jaipur-Dausa-Sikar-Alwar
(d) Ajmer-Bhilwara-Tonk-Nagaur
Answer:
(a).
Question 2.
The process of integration of Rajasthan was completed in
(a) 1951
(b) 1952
(c) 1954
(d) 1956
Answer:
(d).
Question 3.
Present Rajasthan comprises
(a) 31 districts and 7 divisions
(b) 33 districts and 7 divisions
(c) 33 districts and 9 divisions
(d) 32 districts and 7 divisions
Answer:
(b).
Question 4.
Which of the following districts is not a part of the Jaipur division?
(a) Dausa
(b) Alwar
(c) Jaipur
(d) Pali
Answer:
(d).
Question 5.
Charmanvati is the ancient name of the river
(a) Banas
(b) Chambal
(c) Banganga
(d) Parvati
Answer:
(b).
Question 6.
Which of the following are the rainy season months in Rajasthan?
(a) May to July
(b) June to September
(c) September to November
(d) April to June
Answer:
(b).
Question 7.
It is not one of the features of the Rajasthan climate
(a) Insufficient and uncertain rains
(b) Dry and semi dry climate
(c) Heavy to very heavy rains
(d) Unequal distribution of rain falls
Answer:
(c).
Question 8.
It is not the river emptying into the Arabian sea?
(a) Ghaggar
(b) Luni
(c) Sabarmati
(d) Mahi
Answer:
(a).
Question 9.
It is also known as the Debar lake
(a) Fatehsagar lake
(b) Jaisamand lake
(c) Ana Sagar lake
(d) Pushkar lake
Answer:
(b).
Question 10.
Which peak of the Aravalli mountain region is the highest?
(a) Guru Shikhar
(b) Achalgarh
(c) Ser
(d) Dilwara
Answer:
(a).
Very Short Answer Type Questions
Question 1.
Which river of Rajasthan is called the dead river?
Answer:
The Ghaggar river of Rajasthan is called the dead river because its flow level is unfounded.
Question 2.
Which is the highest mount peak of Rajasthan and what is its height?
Answer:
The highest mount peak of Rajasthan is Guru Shikhar mount. It is 1722 m high.
Question 3.
Write the names of the dams on the Chambal river.
Answer:
The names of the dams on the Chambal river are—Gandhi Sagar, Jawahar Sagar, Rana Pratap Sagar and Kota Barrage.
Question 4.
What is the number of divisions, districts and tehsils in Rajasthan?
Answer:
Rajasthan has 7 divisions, 33 districts and 241 tehsils.
Question 5.
Name any three sweet water lakes of Rajasthan.
Answer:
Three sweet water lakes of Rajasthan are
- Jaisamand lake
- Ana Sagar lake
- Rajsamand lake
Question 6.
Ghaggar river is the name of which ancient river of Rajasthan?
Answer:
Ghaggar river is the name for the ancient Sarswati river of Rajasthan.
Question 7.
In terms of area Rajasthan is larger than many countries of the world. Name those countries.
Answer:
In terms of area Rajasthan is larger than many countries as Israel (17 times), Sri Lanka (5 times), England (2 times) and others as Norway, Poland and Italy.
Question 8.
Write longitudinal and latitudinal location of Rajasthan.
Answer:
Rajasthan is located in the North-West part of India between 23°3′ to 30°12′ N latitude and 62°29′ to 78° 17′ East longitude.
Question 9.
Which region of Rajasthan is also known as the Bagar region?
Answer:
Shekhawati region of Rajasthan is also known as the Bagar region.
Question 10.
Which lake is also known as the Dhebar lake?
Answer:
Jaisamand lake is also known as the Dhebar lake.
Question 11.
Name the districts of Rajasthan with the minimum rainfall between 10 cm to 25 cm.
Answer:
The districts of Jaisalmer, Barmer and Ganganagar receive the minimum rainfall between 10 cm to 25 cm.
Question 12.
Which lake of Ajmer was built by Prithviraj Chauhan’s grandfather?
Answer:
Anaji Chauhan, Prithviraj Chauhan’s grandfather built the Ana Sagar lake in Ajmer.
Question 13.
What does the ‘River Basin’ region mean?
Answer:
River Basin region is made up of the mud brought by the rivers.
Question 14.
What is Chhappan Plain?
Answer:
The area between Pratapgarh and Banswara has a group of 56 villages, hence it is known as the Chhappan Plain.
Short Answer Type Questions
Question 1.
Write about the administrative units of Rajasthan. Mention its divisions and districts.
Answer:
The process of integration of Rajasthan, after India’s independence, was completed in 1956. Administratively Rajasthan has 7 divisions, 33 districts and 241 tehsils. The divisions and districts of Rajasthan are:
Divisions Districts
- Jaipur Jaipur, Dausa, Sikar, Alwar and Jhunjhunu
- Jodhpur Jodhpur, Jalore, Pali, Barmer, Sirohi and Jaisalmer
- Bharatpur Bharatpur, Dhaulpur, Karauli and Sawai Madhopur
- Ajmer Ajmer, Bhilwara, Tonk and Nagaur
- Kota Kota, Bundi, Baran and Jhalawar
- Bikaner Bikaner, Ganganagar, Hanumangarh and Churu
- Udaipur Udaipur, Rajsamand, Dungarpur, Banswara, Chittorgarh and Pratapgarh.
Question 2.
Write about the International boundary and the bordering states of Rajasthan.
Answer:
On the Western side, Rajasthan shares a long stretched border of 1070 km length with Pakistan. It borders Punjab and Haryana in the North and North-East, Uttar Pradesh and Madhya Pradesh in the east, Madhya Pradesh and Gujarat in the south and west respectively.
Question 3.
Write briefly about the Saline lakes of Rajasthan.
Answer:
Saline lakes of Rajasthan
- Sambhar Lake:
It is in the Jaipur district about 65 km from Jaipur in the west. Its total area is 150 sq km. Its water is used to produce salt. - Didwana Lake:
It is in the Nagaur district near Didwana city. Its water is used to prepare sodium Lavan. - Pachprada Lake:
It is in a place Pachprada in Barmer district. - Lunkaransar Lake:
It is located in Lunkaransar about 80 km away from Bikaner.
Other small salt water lakes are Falaudi, Kuchaman, Kavod, Kachhor, Rewasa, etc.
Question 4.
Which factors determine the climate of Rajasthan? What are the main features of the climate of Rajasthan?
Answer:
Factors determining the climate of Rajasthan are — Latitudinal location, distance from sea, height above sea level, position and direction of the Aravalli mountain ranges, vegetation cover, etc.
Main Features of climate of Rajasthan are:
- Dry (arid) and semi-arid climate.
- Insufficiency and uncertainty of rains.
- Unequal distribution of rains.
- Most of the rainfall from June to September.
- Scarcity of rains and their uncertainty leading to famine and drought.
Long Answer Type Questions
Question 1.
Only enumerate the saline (salt) water lakes and give a brief description of the sweet water lakes of Rajasthan?
Answer:
I. The Saline Water lakes of Rajasthan are:
- Sambhar Lake.
- Didwana Lake.
- Pachprada Lake.
- Lunkaransar Lake.
Besides, these above lakes, there are many small lakes in Falaudi, Kuchaman, Kavod, Kachhore, Rewasa, etc.
II. Sweet Water Lakes:
Sweet Water lakes hold a great significance in Rajasthan because there is a scarcity of water in the state, and the sweet water lakes provide water for drinking and irrigation. Many sweet water lakes of Rajasthan are artificial as they have been made by constructing dams as barriers to contain their water. There are, however, Natural lakes too.
The following are the sweet water lakes of Rajasthan:
1. Jaisamand Lake:
Maharaja Jaisingh got it built between 1685-1691 by damming the water of the river Gomati. This lake is located 51 km to the North-East of Udaipur. It is also known as the Dhebar Lake. It is the largest natural lake of Rajasthan and it has a great tourist significance!.
2. Rajsamand Lake:
It was built by Maharana Raj singh. It is located in the Rajsamand district, 64 km away from Udaipur. The ghats and nine posts (Chowkis) on its banks enhance its beauty. History of Mewar is inscribed, here, in Sanskrit on the marble slabs.
3. Pichola Lake:
It is a significant tourist resort and is located to the West of Udaipur city. On its two islands stand Jag Mandir and Jag Niwas palaces.
4. Fateh Sagar Lake:
It adjoins Udaipur city and is to the North-West of the Pichola lake. It was built by Maharana Fateh Singh.
5. Ana Sagar Lake:
It was built by Anaji, the ruler Prithviraj Chauhan’s grandfather in Ajmer. Its beauty is enhanced by the Daulat Bagh (Garden) and marble Baradaris built on its banks. They attract tourists in a large number.
6. Pushkar Lake:
It is 11 km from Ajmer, enclosed by the mounds. It has its religious significance and attracts huge crowd of the tourists.
7. Siliserh Lake:
It is a beautiful lake among the Aravalli hills about 12 km far from Alwar.
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