Soil Health MCQs (Quiz 19)

Soil Health MCQs (Quiz 19)
Multiple Choice Questions for Professional Test Preparation

1. Through underground fungal networks, plants can exchange __________.

 Plastic compounds

 Nutrients and chemical signals

 Seeds

 Metal ions

2. Healthy mycorrhizal activity in soil contributes to __________

 Root restriction

 Soil compaction

 Better soil structure and biological activity

 Nutrient loss

3. Soil aggregates help preserve necromass-derived carbon by __________

 Exposing organic matter to rapid oxidation

 Increasing erosion rates

 Preventing all microbial interactions

 Physically protecting organic materials from decomposition

4. Balanced nutrient availability in soil is essential for proper plant __________

 Stunted growth

 Growth and physiological functions

 Soil compaction

 Delayed growth

5. High levels of nitrogen in soil may delay __________ in many crops

 Seed germination

 Root respiration

 Flowering and fruit maturation

 Water absorption

6. Sandy soils generally require amendments because they ___________

 Drain water too quickly

 Become highly compacted

 Retain too much water

 Contain excessive clay

7. During dry conditions, mycorrhizal fungi help plants mainly by improving __________.

 Root isolation

 Leaf decay

 Stem hardening

 Water and nutrient absorption

8. Which property of vermiculite benefits plant growth the most?

 Excellent moisture retention capacity

 Sharp texture

 High weight

 Low porosity

9. Conservation agriculture supports healthier soils by reducing __________

 Organic matter formation

 Disturbance to fungal and microbial communities

 Root development

 Water infiltration

10. Soil fungal networks contribute to climate resilience mainly through __________

 Reduction of soil biodiversity

 Complete decomposition shutdown

 Carbon sequestration and nutrient cycling

 Rapid carbon loss

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