Question
When a sample of soil is mixed with some water inside a beaker, the upper layer of soil always floats on top. This layer is called humus. What is it composed of?
Answer: Option D
:
D
Humus is the lightest layer of soil profile and floats on top of water. It is composed of dead and decomposingremains of animals and plants. Ithelps increase the quality of soil by adding nutrients to it. It makes the soilmore suitable for plant growth.
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:
D
Humus is the lightest layer of soil profile and floats on top of water. It is composed of dead and decomposingremains of animals and plants. Ithelps increase the quality of soil by adding nutrients to it. It makes the soilmore suitable for plant growth.
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