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Question
Top-soil contains the following:
Top-soil contains the following:
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Solution
The correct option is C Humus, living organisms, and plants
The correct option is - Option C: Humus, Living organisms, and Plants
The explanation for the correct option:
- Topsoil is the uppermost region of the soil profile.
- It contains Humus(partially decomposed and decayed organic matter), living organisms, and embedded shoots and roots of small plants.
The explanation for the incorrect options:
Option A) Topsoil also contains the plant's roots embedded therefore topsoil also contains plants.
Option B) Living organisms are the main constituent of topsoil.
Option D) Soil particles of different sizes and textures are present in different zones of the soil profile. But topsoil contains roots of small plants embedded in it.
Therefore the correct option is Option C: Humus, Living organisms, and Plants
Humus, living organisms, and plants
The correct option is - Option C: Humus, Living organisms, and Plants
The explanation for the correct option:
- Topsoil is the uppermost region of the soil profile.
- It contains Humus(partially decomposed and decayed organic matter), living organisms, and embedded shoots and roots of small plants.
The explanation for the incorrect options:
Option A) Topsoil also contains the plant's roots embedded therefore topsoil also contains plants.
Option B) Living organisms are the main constituent of topsoil.
Option D) Soil particles of different sizes and textures are present in different zones of the soil profile. But topsoil contains roots of small plants embedded in it.
Therefore the correct option is Option C: Humus, Living organisms, and Plants
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