Soil Health MCQs (Quiz 2)

Soil Health MCQs (Quiz 2)
Multiple Choice Questions for Professional Test Preparation

1. Which soil property is most closely related to water infiltration?

 Soil pH

 Soil color

 Crop height

 Soil aggregation

2. Which management practice most consistently improves soil structure and long-term soil health?

 Frequent deep tillage to break up clods

 Maintaining continuous plant cover and residues

 Over-irrigation to keep soil saturated

 Regular burning of crop residues

3. Which greenhouse gas is primarily removed from the atmosphere and stored in healthy soils through the buildup of organic matter?

 Methane (CH₄)

 Carbon dioxide (CO₂)

 Nitrous oxide (N₂O)

 Sulfur hexafluoride (SF₆)

4. Among the soil management practices _____________ is the most effective for conserving soil organic matter

 Minimum tillage

 Deep plowing

 Residue burning

 Continuous monoculture

5. Which farming practice helps improve soil biodiversity?

 Excessive tillage

 Burning crop residues

 Continuous monoculture

 Cover cropping

6. Famous 19th-century naturalist _________________ highlighted the ecological role of earthworms in soil formation and fertility, indirectly contributing to the concept of soil health

 Louis Pasteur

 Charles Darwin

 Gregor Mendel

 Alfred Russel Wallace

7. A farmer wants to check soil compaction of his agricultural land. Which is the quickest physical method to use right in the field?

 Pushing a metal rod or penetrometer into the soil to assess resistance

 Measuring how warm the soil feels to the touch

 Counting earthworms in a shovel-full of soil

 Sending soil to a lab for nutrient testing

8. How does soil organic matter most strongly contribute to soil health?

 It eliminates the need for soil organisms

 It improves structure, water retention, and nutrient cycling

 It increases soil color uniformity

 It directly supplies all nutrients in sufficient quantities

9. Regenerative agriculture mainly focuses on __________

 Monocropping systems

 Soil restoration and ecosystem improvement

 Increasing pesticide use

 Maximizing irrigation

10. A farmer observes standing water on a field two hours after a moderate rainfall. Which soil condition is the most likely primary cause?

 High sand content

 Active earthworm populations

 High soil aggregation

 Surface crusting or compaction

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