class 7 chapter 9

Soil The uppermost layer of the earth’s crust where plants grow is called soil. Soil is a very important natural resource. Soil gives anchorage to plants and provides water and nutrients. It is essential for agriculture and is home to many organisms. Agriculture is the source of food, clothing and shelter. https://www.youtube.com/watch?v=F47oRR6QM5w&t=1s       […]