Cách sử dụng
Subsoil refers to the layer of soil that is found beneath the topsoil layer. It is often harder and more compact than the topsoil and can be found deeper in the ground. This word is commonly used when talking about farming, gardening, or construction. For example, if you are planting a garden, you may need to dig through the topsoil to reach the subsoil in order to give your plants enough space to grow their roots. Similarly, if you are building a house, you may need to remove some of the subsoil in order to create a stable foundation.