Question Discussion & Solution

• Rice is an important crop of Rajasthan grown in the command area as well as the area of high rainfall.
  • The maximum area is under irrigated transplanted (53.4%), followed by rainfed uplands (30.5%) and rainfed transplanted (16.1%).
  • More than two-thirds of the rice-producing area of Rajasthan falls under a Humid southern plain.​

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 Bhilwara.

• Red and Yellow soils are found in the Sirohi, Bhilwara, Sawai Madhopur, Ajmer districts of Rajasthan.
• Due to the higher degree of hydration of ferric oxide the soil has acquired yellow color. The pH of this type of soil ranges from 5.5 to 8.5.
• Silty-loams to silty-clay loams are common in the region.
• The surface color of the soil varies from light yellowish, brown-yellowish to dark brown.

Key Points

• Medium black soil is found in Kota, Bundi, Jhalawar districts.
• Grey Brown or Desert soil is found in Jodhpur, Barmer, Nagaur districts.

The correct answer is Bikaner.

Key Points

• Gypsiferous Soil-
  • This soil contains sufficient quantities of gypsum to interfere with plant growth.
  • This soil is not found in wet climates usually.
  • This soil is found in dry areas, where sources for calcium sulfate exist.
  • In Rajasthan, this soil is found in the Bikaner districts.

Additional Information

 Some other agriculture soils with related places-

The correct answer is Banswara.

Key Points

•  Koppen's Aw type of climate is in Banswara.

Additional Information 

• The Koppen climate classification scheme divides climates into five main climate groups:
  • ​ A (tropical), B (dry), C (temperate), D (continental), and E (polar).
• The second letter indicates the seasonal precipitation type, while the third letter indicates the level of heat.
• Aw, or the tropical wet and dry climate, also known as the savanna climate, where there is an extended dry season during the winter.