Preview Questions Soil Scientist | Role Specific Skill

Question 1: What is the primary benefit of conducting a microbial biomass carbon (MBC) test in soil?

Which action should you take?

Choose only one option

To assess soil texture

To assess soil microbial activity and health

To determine nitrogen availability

To measure soil pH fluctuations

Question 2: How does soil biodiversity correlate with overall soil health and fertility?

Which action should you take?

Choose only one option

Lower biodiversity usually indicates improved soil health

Higher biodiversity indicates contamination by heavy metals

Higher biodiversity negatively affects crop yields

Higher biodiversity generally correlates with higher fertility

Question 3: What is the role of soil organic matter in preventing soil erosion?

Which action should you take?

Choose only one option

It promotes excessive plant growth that accelerates soil erosion

It improves soil structure, enhancing its resistance to erosion from wind and water

It increases water runoff by reducing water infiltration

It lowers the soil pH, increasing nutrient leaching

Question 4: When conducting a soil test for macronutrients, which extraction method is typically used to determine available phosphorus in neutral to alkaline soils?

Which action should you take?

Choose only one option

Mehlich-3 method

Bray P1 method

Olsen method

Morgan's method

Question 5: Which soil health metric is primarily influenced by the presence of earthworms?

Which action should you take?

Choose only one option

Soil structure improvement

Increased salinity

Soil pH reduction

Reduced water retention

Question 6: In a soil testing lab, which procedure would you use to determine the soil organic carbon content using dry combustion?

Which action should you take?

Choose only one option

Walkley-Black method

Dumas method

Soluble organic carbon method

Loss-on-ignition method