Question Discussion & Solution

The correct answer is Arid.

• Sewan and Lawan grasses grow in Arid climatic region of Rajasthan.

Additional Information 

• The dominant perennial grass is the indigenous sewan (Lasiurus sindicus), popularly known as the "king of desert grasses". 
• Sewan and Lawan are a remarkable natural resource for the people of the desert.
• High water-use efficiency enables this native grass cover to maximise its production even with little water available through scanty rainfall.
• It also has high energy-use efficiency, which permits it to produce more biomass.
• Sewan is the primary grass of extremely arid parts of Jaisalmer, Barmer and Bikaner districts of western Rajasthan in the Indian Thar desert.
• It thrives well under moisture stress on sandy plains, low dunes and hummocks of this region, receiving annual rainfall below 200 mm

The correct answer is the Saraswati River.

Key Points

• The Saraswati by this time had become a mythical "disappeared" river, and the name was transferred to the Ghaggar which disappeared in the desert.
• Since the late 19th-century, scholars have identified the Vedic Saraswati river as the Ghaggar-Hakra river system.
• Saraswati River is believed to have disappeared under the Thar Desert because of the emergence of the Aravalli Mountain Range.
• It reappears in Allahabad which is the meeting point of Ganga and Yamuna.

The correct answer is Behror, Bhimmal, Surajgarh, Dhond, Shri Madhopur.

Key Points

• Rajasthan can be divided into three hydrogeological units namely, unconsolidated sediments, semi-consolidated sediments and consolidated rocks.
• Central Ground Water Board (CGWB) under the Ministry of Water Resources and State Governments jointly estimated replenishable groundwater resources.
• Some of the parts of Rajasthan have been categorized as “Over exploited”. Over-exploited assessment units of Rajasthan are- Behror, Bansur, Kathumar, Kishangarh, Kotkasim, Laxmangarh, Mandawar, Neemrana, Rajgarh, Ramgarh, Reni, Thanagazi, Tijara, Umrain.
• Central Ground Water Authority of India has put a total ban on the exploitation of groundwater in Behror, Bhimmal, Surajgarh, Dhond, Shri Madhopur.
• Dudu, Sambhar, Chaksu, Jamwa Ramgarh and Kotputli blocks are affected by salinity problems. Further many areas in Jaipur have problems with fluoride contamination in groundwater.

Additional Information

• Central Ground Water Board (CGWB) is the apex organization of the Ministry of Water Resources dealing with groundwater and related issues.

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 is Dhaulpur

• Due to the drainage of the Chambal river in Dhaulpur, maximum beehad land is found here because the Chambal river valley is part of the Vindhyan system which consists of massive sandstone, slate, and limestones.

Additional Information

• Jammu & Kashmir had the largest area of wastelands in the country, which was more than double of wastelands in Rajasthan, the state with the second-largest area of wastelands in the country.