Soil Health MCQs (Quiz 5)

Soil Health MCQs (Quiz 5)
Multiple Choice Questions for Professional Test Preparation

1. In soil science, the priming effect is mainly associated with ____________

 Faster breakdown of existing soil organic matter

 Increase in soil salinity

 Reduction in soil moisture

 Complete prevention of decomposition

2. Biochar improves soil water-holding capacity mainly by _____________

 Increasing evaporation from the soil surface

 Enhancing soil water retention

 Reducing water infiltration into soil

 Suppressing plant root systems

3. Regenerative agriculture mainly helps the environment by _______________

 Expanding desert areas

 Improving soil health

 Increasing soil degradation

 Reducing crop diversity

4. Plant-available water in soil refers to ________________

 Water lost as surface runoff

 Water retained in soil that can be absorbed by plant roots

 Water that is completely unavailable to plants

 Water held below the permanent wilting point

5. A soil has 60% sand, 30% silt, and 10% clay (Soil A). Compared to a clay soil (Soil B), soil A will typically have ___________________

 No relationship between texture and infiltration

 Lower infiltration rate due to smaller pores

 The same infiltration rate regardless of texture

 Higher infiltration rate due to larger pore spaces

6. The rhizosphere is the area of soil found _____________

 Beneath groundwater layers

 Around plant roots

 Above the atmosphere

 Inside rocks

7. Soil health assessments are designed to evaluate ______________________

 Atmospheric pressure changes

 Overall soil condition and functioning

 Rock formation

 Plant height

8. ________________ is considered the most stable carbon pool, persisting in the soil for decades to centuries

 Mineral-associated organic carbon

 Fresh plant litter

 Surface crop residues

 Dissolved organic carbon

9. Which best describes “soil health” in an agricultural field?

 The visual appearance of the soil surface after tillage

 The total amount of fertilizer applied to the soil each year

 The soil’s ability to function as a living ecosystem that sustains plants, animals, and humans

 The percentage of sand, silt, and clay in the soil

10. Which technology is commonly used to observe soil conditions from satellites or aircraft?

 Electroplating

 Microscopy

 Remote sensing

 DNA sequencing

 Loading …

Question 1 of 10

[Explore all MCQs]
[Soil Science MCQs] [Soil Physical Properties MCQs] [Soil Chemical Properties MCQs [Crop and Environment MCQs][Fundamentals of Plant Nutrition MCQs]
[Botany MCQs ] [Plant Physiology MCQs][Environmental Science MCQs]