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The correct answer is topsoil.


Topsoil is upper layer which lies from 2 inches to 8 inches. Topsoil contains greatest concentration of nutrients and organic matter that is required for the growth of plants. This layer of soil is rich in nutrients and minerals. It is the layer where all the biological activities take place. This layer is rich in microorganisms that are also important for the growth of plants. The concentration of nutrients and organic matter present depends on the type of soil such as black soil, loamy soil.


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The top soil is the most important layer of soil for plant growth.

What is the top soil?

The top soil is the layer of the soil will lies topmost in the soil.

The top soil ranges from 2 - 8 inches deep in the soil.

The top soil contains the most nutrients needed by plants for growth.

The top soil includes loamy, clayey and sandy soil.

Therefore, top soil is most important for plant growth.

Learn more about top soil at: https://brainly.com/question/19838598

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