Soil: Formation of soil, Soil profile(A-Horizon or topsoil, B-Horizon or middle layer, C-Horizon, Bedrock or D-Horizon), Constituents of soil(Soil Particles, Soil Water, Flora and Fauna, Soil Air, Humus), Types of soil( Sandy, Clayey, Loamy), Characteristics of soil(percolation Rates of water, Types of Crops Grown.
