According to the 2011 census, Scheduled Tribes constitute 13.5 per cent of the total population of Rajasthan.

1. According to the globe, India is located in northern latitude and eastern longitude. (Northern Hemisphere and Eastern longitude)

2. Rajasthan state is located from 23°03′ north latitude to 30°12′ north latitude and from 69°30′ east longitude to 78°17′ east longitude.

Soil erosion is a serious environmental problem. Steps should be taken to curb this problem. Following are some ways to prevent soil erosion:

1. Plant trees on barren lands to prevent soil erosion.

2. Add mulch and rocks to trap plants and grass beneath to prevent soil erosion.

3. Mulch matting can be used to reduce erosion on slopes.

4. Place a series of fiber logs to prevent any water or soil from flowing away.

5. A wall at the base of a slope can help prevent soil erosion.

6. Every house should have proper drainage system so that water can flow into proper water collection systems.

Rajasthan accounts for 16.27% making it the second largest state in groundnut production in India.

All of the following (Irrigation Project – District) are matched.

(A) Savan-Bhado - Kota

(B) Som Kagdar - Udaipur

(C) Parvan lift -Jhalawar

(D) Som-Kamla-Amba - Dungarpur