Soil Health MCQs (Quiz 1)

Soil Health MCQs (Quiz 1)
Multiple Choice Questions for Professional Test Preparation

1. Earthworms are important in soil because they improve _______

 Toxic metal accumulation

 Salinity levels

 Surface sealing

 Soil structure and aeration

2. Which of the following is NOT generally considered a primary function of healthy soil?

 Sustaining biological activity and diversity

 Filtering and buffering potential pollutants

 Producing non-renewable fossil fuels

 Regulating and partitioning water flow

3. A farmer wants to improve soil structure over many years. Which practice should a farmer use?

 Burning all leftover plants after harvest

 Plowing deeply after every harvest

 Watering the soil until it is completely soaked every day

 Leaving plant roots and crop leftovers on the field

4. The excessive accumulation of soluble salts in soil is known as _______

 Alkalinity

 Podzolization

 Laterization

 Salinity

5. What is a primary physical determinant of soil health that directly affects root growth and water movement?

 Soil texture alone

 Electrical conductivity

 Soil structure and aggregation

 Soil pH

6. Who defined soil health as “the capacity of a soil to sustain biological productivity, maintain environmental quality, and promote plant health”?

 Blackman and Priestley

 Darwin and Wallace

 Doran and Parkin

 Liebig and Mitscherlich

7. Which indicator most directly reflects the biological component of soil health?

 Soil microbial biomass and activity

 Bulk density

 Cation exchange capacity

 Soil organic carbon content

8. Which of the following best distinguishes soil health from soil quality?

 There is no difference; the terms are identical in all literature

 Soil health emphasizes dynamic, living components; soil quality often focuses on inherent and measurable attributes

 Soil health is a static property; soil quality changes seasonally

 Soil quality excludes chemical properties; soil health includes them

9. Among the soil components ____________ is considered as the foundation of soil health due to its influence on physical, chemical, and biological properties?

 Sand fraction

 Gravel content

 Lime content

 Soil organic matter

10. Which scientist and colleagues are known for developing the “Soil Management Assessment Framework” (SMAF) to quantify soil health?

 Charles Darwin

 Douglas Karlen

 Justus von Liebig

 John McCarthy

 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]