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.

1. World Environment Day is celebrated every year on 5 June.

2. Its objective is to make mankind aware of the environment.

3. First held in 1973, it has been a platform to raise awareness on environmental issues such as marine pollution, overpopulation, global warming, sustainable development and wildlife crime. World Environment Day is a global platform for public outreach, with participation from over 143 countries annually.

Tanka is an underground reservoir built to store rain water. The tanka usually has a square or rectangular shape and is constructed from clay or stone. A wall is built around the tanka so that rain water can collect in it.

Khadin-It is a temporary pond made of earth, it is built under some sloping land. There is an earthen wall (Dhora) on both sides and a strong wall made of stone on the third side. When there is excess water, the pond gets filled and the water flows into the next pond. After the water in Khadin dries up, agriculture is done in it.

2. Pond- In Rajasthan, rain water is often collected in ponds. There are separate bathing ghats for men and women here. There is a well at the bottom of the pond, which is called Beri. This ancient method of water harvesting still holds its importance. This increases the ground water level.

4. Stepwell-Stepwells have their own place in Rajasthan. This is an ancient method of storing water. It is deep and has stairs and platforms to descend and is rich in artefacts.

5. Tanka: Tanka is an underground reservoir built to store rain water. The tanka usually has a square or rectangular shape and is constructed from clay or stone. A wall is built around the tanka so that rain water can collect in it.

Gir Cow: This breed is found in Rajasthan, Gujarat and Maharashtra. It is also called Desan, Gujarati, Surti, Kathiawadi, and Sorathi. Its body is red in color with white spots, dome-shaped head and long ears. This cow gives an average of 2110 milk per calving.

Rathi Cow: The origin of this breed is Rajasthan. This breed is spread in Thar Desert, Bikaner, Ganganagar and Jaisalmer districts of Rajasthan. Its skin is mainly brown in color with white spots on it and sometimes its skin is black or brown in color with white spots on it. The lower part of its body is lighter in color than the rest of its body. Its wide mouth, long tail and hanging skin are soft and loose. It produces an average of 1000-2800 kg in one calving. At the time of first calving, the age of a cow of this breed should be 36-52 months and its one calving period is 15-20 months.

The cluster variety 'Mahi Kanchan' developed by the Agricultural Research Center, Banswara is related to maize crops.

2. Mahi Kanchan, Mahi Dhawal and Megha are varieties of maize. The major maize-producing districts in Rajasthan are Bhilwara, Chittorgarh, Udaipur, Banswara and Bundi.

1. The cluster variety 'Mahi Kanchan' developed by the Agricultural Research Center, Banswara is related to maize crops.

2. Mahi Kanchan, Mahi Dhawal and Megha are varieties of maize. The major maize-producing districts in Rajasthan are Bhilwara, Chittorgarh, Udaipur, Banswara and Bundi.

The headquarters of the Central Institute of Arid Horticulture is located 10 km away from Bikaner city on National Highway No. 15 (Bikaner-Sriganganagar Road) at 280 North latitude and 730.18 East longitude and 234.84 m above sea level. Above.

1. To conduct plan-targeted basic studies to develop technologies to increase the production and utilization of horticultural crops in dry areas.

2. To act as ‘National Gene Bank’ of dry horticultural crops.

3. To develop effective crop rotation of multiple horticultural crops in dry environment.

4. To act as a 'National Centre' of scientific information related to arid horticulture.

5. To act as 'Human Resource Development Centre' of arid horticulture with the role of main coordinator between State Agricultural Universities and other similar functioning institutions.

6. To provide guiding advice for development and research of dry horticulture.