Question Discussion & Solution

The correct answer is 1-C, 2-B, 3-D, 4-A.

Key Points

Important Points

• Aravali Mountain Region-
  • Its Geographical structure is firstly explained by A.M.Heran in 1923 AD.
  • It is compared with American Aplesian Mountain.
  • The Aravali Range is a northeast-southwest trending organic belt that is located in the northwestern part of the Indian Peninsula.
  • It extends in Rajasthan from 23° 20' north axis to 28° 20' north axis and 72° 10' eastern longitude to 77° eastern longitude.

The correct answer is Bikaner- Ganganagar district - Tungsten.

• Bikaner- Ganganagar District:
  • Fields are located in the northern part of Rajasthan.
  • Gypsum is produced here in great quantity.
  • Jamsar is the major centre of production.
  • Most of the gypsum of Jamsar is now sent to the chemical fertilizer factory of Sindri in Bihar.

Additional Information

•  Nimla-Raisalo area - Iron ore:
  • Deposits of iron ore are around Nimla village.
  • Other places of iron deposits around this region are Bhangarh, Ratnapura, Rajgarh and Tohla.
• Chauth-ka-Barwara - zinc, and lead:
  • Northern-Eastern Rajasthan has zinc and lead deposit.
  • In this region, there are two major areas, known as Chauth-ka-Barwara in Sawai Madhopur and Gurha Kishori Das in Alwar district.
• Khetri-Singhana Belt - Copper:
  • It is a copper extraction belt of Rajasthan.
  • These are located in Maonda railway station.
  • Copper ore is extracted from these mines in this region, i.e., Madan Kudan mines, Kolihan mines,  Banawas mines, Barkhera mines, and others. 

The correct answer is Beed.

Key Points

• Shekhawati Region-
  • Sikar, Churu, Jhunjhunu, and Northern Nagaur's inner water flowing area is known as Shekhawati Region / Bangar Region/ Inner water flowing area.
  • Lime layer is found below the ground in this region.
  • Johad/ Nada is a well that is found in this region.
  • Johad deepest place is known as Chobhi.
  • Churu , Sikar, and Jhunjhunu are built by Rav Shekha ,So this area is known as Shekhawati.
  • Grasslands found in this region are known as Beed.
  • Mostly Baluka stup is found in the Bangar region, where water is collected between them is known as SAR or Sarovar like- Salisar, Mansar, Jasusar etc.

Important Points

• Due to river flow soil is excessively eroded and deep valleys are built, which is known as Beehad.
• Most Beehad are found in Sawai Madhopur.
• Beehad is also known as the asylum of Goons. 

The correct answer Banswara District 

Key Points

District-wise distribution of the tribal population

• District-wise distribution of the tribal population shows that they have their highest concentration in Banswara district (72.3 percent), followed by 65.1 percent and 47.9 percent in Dungarpur and Udaipur districts respectively.
• Nagaur ( 0.2 percent) preceded by Bikaner (0.4 percent) has the lowest share of tribal population in the total population.

​Rajasthan as per the 2011 census

• The second major tribe, Bhil has a share of 99 percent of all ST population in Barmer district followed by Jaisalmer, Jodhpur, Rajsamand (95 percent) districts.
• The Scheduled Tribes of the State have registered considerably lower sex ratio both in total as well as in the 0-6 yrs
  • As per the 2001 census, the Scheduled Tribe (ST) population of Rajasthan State is 7,097,706 constituting 8.4 percent of the total ST population of India.
• The Scheduled Tribes of the State constitute 12.6 percent of the total population (56,507,188) of the State.
• It holds 12th position among all States and UTs in respect of the percentage share of ST population to the total population.
• The ST population has registered a growth rate of 29.6 percent during 1991-2001 which is 1.2 percent higher than the growth of the total population.
• The Scheduled Tribes are overwhelmingly rural as 94.6 percent of them inhabit rural areas whereas 76.6 percent of the total population of the state live in villages.

Important Points

• Out of twelve (12) tribes scheduled for the State, Mina is the most populous tribe, having a population of 3,799,971 constituting 53.5 percent of the total ST population followed by Bhil (2,805,948).
• Mina and Bhil together constitute 93 percent whereas Garasia, Damor, Dhanka & Saharia combine to form 6.6 percent of the total ST population.
• Six tribes, Bhil Mina, Naikda, Kathodi, Patelia, Kokna, and Koli Dhor along with the generic tribes constitute the residual 0.3 percent of the total tribal population.
• Among the twelve STs, Koli Dhor is the smallest tribe with a population below 100 preceded by Kokna (405), Patelia (1,045), Kathodi (2,922) etc.  

The correct answer is Dungarpur - Banswara.

Key Points

• In Rajasthan, the Mahi river forms the boundary with Dungarpur and Banswara districts.

Additional Information 

• Mahi is one of the major interstate west-flowing rivers.
  • The total length of Mahi is 583 km.
  • It originates in the Mahi Kanta hills, from the northern slopes of Vindhyas at an altitude of 500 m near village Bhopawar, Sardarpur Tehsil in Dhar district of Madhya Pradesh. 
  • It enters the Banswara district of Rajasthan and makes the border between Banswara and Dungarpur. 
  • Mahi river tributaries- Som, Anans, and Panam.
  • Mahi is the only river that crosses the tropic of cancer twice.