Identify the soil horizon which is called as the „TOP SOIL’ and in which seeds germinate and
plants grow.
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Explanation:
Horizon A or Topsoil
It is also called the humus layer, which is rich in organic material. This layer consists of decomposed material and organic matter. This is the reason, the topsoil has a dark brown color. The hummus makes the topsoil soft, porous to hold enough air and water. In this layer, the seeds germinate and roots of the plants grow. Many living organisms like earthworms, millipedes, and centipedes, bacteria, and fungi are found in this layer of soil.
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