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Irrigation Engineering MCQs
Which soil layer primarily contributes to the depth of soil water available to plants?
10. Which soil layer primarily contributes to the depth of soil water available to plants?
- Bedrock
- Topsoil
- Subsoil
- Soil horizon
Answer
The correct answer is: B) Topsoil
Explanation
Most plant roots are found in the topsoil, which is the soil's highest layer and is essential for absorbing water.