Question Discussion & Solution

The correct answer is Wind Erosion

Additional Information

• 92% of the area in Rajasthan is currently affected by desertification, with about 76% from wind erosion, 13% by water erosion, and another 4% area is affected by waterlogging and salinity/alkalinity.
• Water erosion and salinity seriously affect agriculture, aggravating poverty, and threatening the food and water security in this area.
• Understanding the causes of land degradation in Rajasthan is crucial to help the Indian government draft policy to protect and improve the livelihoods of the communities living there.
• The main reason for desertification is the loss of soil cover.

The correct answer is Kantli.

Key Points

• The river of inland drainage is Kantli.

Additional Information 

• Kantli River:
  • Kantli river originates from the hills of Khandela hills of Sikar district and taking a northerly course runs into Jhunjhunu and ends in sand dunes near Churu district.
  • Site of ancient OCP culture - Ganeshwar lies on the bank of the Kantli river.
  • The catchment area of the Kantli river is known as Torawat
  • The topography of the Shekhawati tracts is characterized by an undulating sandy terrain traversed by longitudinal sand dunes.
  • There is only one seasonal river Kantli.

The correct answer is Winter rain.

• Popularly known as 'Mavath' in Rajasthan is Winter Rain.

Additional Information 

• During the winter, the flow of air reverses.
• The continent cools rapidly forming a large area of high pressure over north-central Asia, known as the Siberian High, and a smaller area over India.
• Now, the drier, colder air of the continent blows offshore creating the dry monsoon season.
• Many parts of southern India receive considerable rain from the northeast monsoon.
• Though the principal rainy season for interior Karnataka, Kerala and Lakshadweep is the Southwest Monsoon season, rainfall continues till December in these regions.
• Tamilnadu, in particular, typically gets nearly half its annual rain during this monsoon.
• It is known as Mavath.

The correct answer is Bhorat Plateau.

• The Mewar Rocky Region:
  • Districts - Udaipur, Rajsamand, Dungarpur, Sirohi, Bhilwara and Chittorgarh
  • The highest portion of Aravalli range lies between the forts of Kumbhalgarh & Gogunda in the form of plateau locally known as ‘Bhorat’.
  • The altitude of Bhorat - 1225 m
  • Bhorat plateau is one of the highest table-lands of Aravalli.

Key Points

• Aravalli range & hilly tract can be divided into the following four parts.
  • North Eastern Hills 
    • Average Height - 300 m to 670 m
  • Central Aravalli Range
    • Average Height - 700 m
  • The Mewar Rocky Region 
    • Average Height - 1225 m
  • The Abu Block 
    • Average Height - 1200 m

Additional Information

• Aravalli Range & Hilly Region:
  • Districts - Alwar, Jaipur, Ajmer, Rajsmand, Udaipur, Sirohi and south-west part of Tonk.
  • Length – 692 Km (from Palanpur in Gujrat to Delhi)
  • Average Height - 600 m
  • Highest Peak - Gurushikhar (1722 m)

The correct answer is Udaipur.

Key Points
Salar Forests:

• These are prevalent in the hills rising to more than 450 meters. 
• These are found in the Udaipur, Rajsamand, Chittorgarh, Sirohi, Pali, Ajmer, Jaipur, Alwar, and Sikar. 
• These are tropical dry deciduous forest.
• It is a good source of gum.
• Wood extract from this tree is used for packing.
• The other trees found in Salar forest are Dhok, Kathira and Dhavar.