Soil Health MCQs (Quiz 20)

Soil Health MCQs (Quiz 20)
Multiple Choice Questions for Professional Test Preparation

1. The relationship between tree roots and mycorrhizal fungi is best described as ________________________

 Predatory

 Competitive

 Symbiotic

 Parasitic

2. Which plant process is most strongly supported by phosphorus?

 Water loss through leaves

 Chlorophyll destruction

 Protein breakdown

 Energy transfer and root growth

3. Poor irrigation management can reduce soil fertility mainly because it __________

 Increases natural nutrient recycling

 Enhances soil aggregation and porosity

 Stops all nutrient movement in the soil

 Removes essential nutrients from the root zone via leaching or runoff

4. Intensive tillage can negatively affect mycorrhizal fungi by __________

 Enhancing fungal network stability

 Eliminating all soil moisture

 Increasing nutrient exchange efficiency

 Breaking apart underground hyphal connections

5. Crops lacking sufficient potassium are generally __________

 Prone to accelerated maturation and early senescence

 Better able to tolerate drought conditions

 More susceptible to environmental stress and lodging

 More resistant to fungal and bacterial diseases

6. Soils with greater microbial diversity are often more resistant to __________

 Environmental disturbances and stress

 Natural recovery

 Water infiltration

 Organic matter formation

7. Soil lacking sufficient organic matter often experiences reduced __________

 Mineral content

 Water evaporation

 Microbial diversity and soil health

 Sand percentage

8. Compost is primarily produced through the breakdown of ___________

 Plant and animal residues

 Metal scraps

 Glass materials

 Synthetic fertilizers

9. What happens if too much vermiculite is added to soil?

 Soil turns into clay

 Soil may retain excessive moisture

 Soil becomes completely sterile

 Plants stop photosynthesis

10. Fungal hyphae improve soil structure mainly by __________

 Preventing root growth

 Binding soil particles into stable aggregates

 Increasing soil compaction

 Reducing water infiltration

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