The correct answer is Jaisalmer. Jaisalmer districts of Rajasthan have the maximum annual rainfall variability.

1. A total of ten countries are located on the Tropic of Capricorn. They are spread over three continents. Of the ten countries located on the Tropic of Capricorn, five are African countries.

2. They are Namibia, Botswana, South Africa, Mozambique and Madagascar. Argentina, Brazil, Chile and Paraguay are South American countries located on the Tropic of Capricorn.

3. Apart from five African countries and four South American countries, Australia is also located on the Tropic of Capricorn.

The 50 cm parallel rainfall line parallel to the Aravali divides Rajasthan into two parts.

From an administrative point of view, all are included in the category of forests in Rajasthan.

(A) Protected forests

(B) Reserved forests

(C) Unclassified forests 

1. Jawahar Sagar Dam is a dam across the Chambal River. It is located about 24 km (15 mi) south-west of Kota.

2. It is one of the dams that have been built under the Chambal Valley Project of the state of Rajasthan and Madhya Pradesh.

Gandhi Sagar Dam is located on the Chambal River on the border of Rajasthan and Madhya Pradesh. Its construction was completed in November 1960. Whose maximum height is 62 meters.

Chambal river water is used for irrigation, hydropower generation and water transportation. Four major dams have been built on the Chambal River, including Gandhi Sagar Dam (Madhya Pradesh), Rana Pratap Sagar Dam, Jawahar Sagar Dam and Kota Barrage (Rajasthan). These dams provide water for irrigation and also generate hydroelectricity.

1. Chambal River is a major river flowing in Central India. This river mainly flows in Madhya Pradesh, but some of it also flows in Rajasthan and Uttar Pradesh. Chambal River is a tributary of the Yamuna River.

2. Chambal River originates from Janapav mountain in the Gwalior district of Madhya Pradesh. This river flows northwards and passes through the Chittorgarh, Dholpur and Sawai Madhopur districts of Rajasthan. After this, the river flows through the Dhar, Ujjain, Ratlam, Mandsaur, Bhind and Morena districts of Madhya Pradesh. Finally, this river joins the Yamuna River in the Etawah district of Uttar Pradesh.

3. The length of the Chambal River is approximately 960 kilometers. This river is the biggest tributary of the Yamuna River. The catchment area of the Chambal River is approximately 72,000 square kilometres.

4. Chambal river water is used for irrigation, hydropower generation and transportation. Four major dams have been built on the Chambal River: Gandhi Sagar Dam, Rana Pratap Sagar Dam, Jawahar Sagar Dam and Kota Barrage. These dams provide water for irrigation and also generate hydroelectricity.