The document discusses the importance of watersheds and water resources. It defines a watershed as a basin that channels rainwater into soil, streams, and rivers flowing into seas. Characteristics like size, shape, slope, climate, drainage, vegetation, geology, and socioeconomics affect how watersheds dispose of water. Watershed management aims to conserve soil and water, improve land's ability to hold water, harvest rainwater, recharge groundwater, and grow greenery through integrated land, water, and resource management. Techniques like contouring, gully control, and green carpeting can achieve these objectives.

12. Rainwater harvesting in a house

13. Rain water harvesting in a village

14. Rain water recharging

15. Rainwater harvesting through recharge well