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  • Layers of Soil.

  • O Horizon.

  • A Horizon.

  • B Horizon.

  • C Horizon.

  • Bedrock.

  • Soil is composed of 5 distinct layers.

  • O Horizon.

  • This layer is dark in color.

  • This layer consists of decomposed leaves, organic matter and humus, which makes the soil fertile.

  • A Horizon.

  • This layer is called as top soil.

  • It is a soft porous layer and is very rich in humus and nutrients.

  • It is a shelter for living organisms like worms and rodents.

  • Plant roots grow in this layer.

  • B Horizon.

  • This is a hard and compact layer.

  • Roots of bigger plants extend till this layer.

  • Minerals.

  • This layer consists of many minerals.

  • This layer is also known as sub soil.

  • C Horizon.

  • Welcome to C Horizon.

  • Hi, we are slightly weathered parent rocks.

  • We have cracks and crevices.

  • Bedrock.

  • Bedrock is the last layer of soil.

  • This layer is very hard.

  • It consists of unweathered parent rocks.

  • This vertical section through which the different layers of the soil are visible is called soil profile.

  • The End.

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Layers of Soil.

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孩子們的土壤層數 | #aumsum (Layers of Soil for Kids | #aumsum)

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    AumSum 發佈於 2021 年 01 月 14 日
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