Question Discussion & Solution

The correct answer is Banas.

Key Points

• The river which has the largest catchment area in Rajasthan is Banas.

Additional Information 

• The Banas River
  • The Banas is a river that lies entirely within the state of Rajasthan in western India.
  • It is a tributary of the Chambal River, itself a tributary of the Yamuna, which in turn merges into the Ganga.
  • The Banas is approximately 512 kilometres in length. 
  • Source: Aravalli Range
  • Mouth: Chambal
  • Cities: Kumbhalgarh in Rajsamand district, Mewar, Chambal near the village of Rameshwar in Sawai Madhopur

The correct answer is d only.

• The Climatic Regions of Rajasthan by Koeppen are Four.
  • Aw
  • BShw
  • BWhw
  • Cwg

Key Points

• Aw:
  • It is Tropical Humid region.
  • This type of climate is found in the southern part of the Rajasthan.
  • It covers the areas of Dungarpur, Banswara, Chittorgarh and Jhalawar.
  • Here the temperature range is as follows.
    • Summer - 30-34 degree
    • Winter - 12-15 degree
  • Yearly Rain - 80 cm i.e. 800 mm 
  •  Vegetation - 
    • Deciduous trees of Monsoon type
    • Dense
    • Savanna like region
    • Arid Tropical grassland
  • In Mount Abu, the average rainfall is 150 cm.
• BShw:
  • It is Semi-Arid.
  • It is found in the Western side of Aravali.
  • It covers the areas of Barmer, Jalore, Jodhpur, Nagore, Churu, Sikar, Jhunjhunu.
  • Average Rainfall - 20-40 cm
  • Here the temperature range is as follows.
    • Summer - 32-35 degree
    • Winter - 5-10 degree
  •  Vegetation -
    • Steppe
      • In physical geography, a steppe is an ecoregion characterized by grassland plains without trees.
    • Thorny bushes and grasses.
• BWhw:
  • It is the Arid Hot Desert region.
  • It covers the areas of Jaisalmer, Bikaner, Shriganganar, Hanumangarh.
  • Average Rainfall - 10-20 cm
  • Here the temperature is as follows.
    • Summer - 35 degree
    • Winter - 12-18 degree
    • Vegetation -
      • Vegetation less
      • Scanty Rainfall
      • Tough environment
      • Process of evaporation is very active.
• Cwg:
  • It is Sub Humid, Monsoonal type.
  • It is located at the southeastern part of the Aravali.
  • Areas - Hadoti, Mewat and Dang areas i.e Rajsamand, Bhilwara, Tonk, Dausa, Sawai Madhopur, Alwar, Bharatpur, Dholpur, Kota, Baran, Northern Chittorgarh.
  • Here Bhihad is found.

The correct answer is Climatic factors.

• The paucity of forests in Rajasthan:
  • It is due to the climatic factors that the state has got the paucity of forests.
  • As 2/3^rd Rajasthan comprises of Thar Desert and is also situated in the air subsidence zone which restricts the amount of rainfall.
  • Thus leading to creation of less tree and less green landscape.

The correct answer is Junagadh - Bundi.

• Junagadh - Bundi pairs of the district with the fort and its location is not correctly matched.

​Key Points

• Junagadh Fort
  • Junagarh Fort is a fort located in the Bikaner, Rajasthan.
  • The fort was originally called Chintamani and was renamed Junagarh or "Old Fort" in the early 20^th century when the ruling family moved to Lalgarh Palace outside the fort limits.
  • It is one of the few major forts in Rajasthan which is not built on a hilltop. 

Additional Information

• Kumbhalgarh fort
  • The fort of Kumbhalgarh, in its current shape and form, was a creation of Mewar's ruler Kumbha in the 15th century. 
  • It is located in Rajasmand.
• Mehrangarh Fort
  • Mehrangarh is located in Jodhpur, Rajasthan.
  • It is one of the largest forts in India.
  • Built around 1459 by Rao Jodha.
• Ranthambore Fort
  • Ranthambore Fort is located in Sawai Madhopur, 
  • King Jayant, also a Chauhan Rajput, built the Ranthambore Fort during 1110 AD.

• Crops are generally grown in mixed red and black soils in Rajasthan are Cotton and Maize.