MCQs Soil Science-54 Posted on August 23, 2025August 30, 2025Author agropublishers 0 1. Which of the given options plays a crucial role in forming stable soil aggregates, thereby enhancing soil structure and reducing erosion? Earthworms All of these Soil microorganisms Plant roots 2. Deep-rooted crops can help to_________ Bring up nutrients from deeper soil layers Reduce soil nutrient availability Decrease soil water infiltration Increase soil salinity 3. In organic farming, a complete and effective crop rotation plan is specifically designed to include __________ Deep-rooted crops Leguminous crops All of these Shallow-rooted crops 4. The primary purpose of crop rotation is to maintain _________ Erosion Soil health Crop production Water conservation 5. Deficiency of __________ is closely associated with chlorosis (yellowing of leaves) in plants Potassium Phosphorus Boron Magnesium 6. What does REDD+ stand for? Reducing Emissions from Deforestation and Forest Degradation Renewable Energy and Development Division Renewable Energy Development Department Reducing Emissions from Developed Countries 7. __________ nutrient is critical for the synthesis of ATP Calcium Phosphorus Potassium Nitrogen 8. Which of the following is a management practice specifically designed to protect the soil surface from the physical impact of raindrops, wind, and machinery? The Humus Layer The Ozone Layer A Mulch Layer 9. _____________is the most frequently used carrier for the rhizobial inoculants. Water Soil Peat Compost 10. _______ is the soil area surrounding plant roots where biological and chemical interactions occur Biosphere Rhizosphere Aerosphere Hydrosphere Loading … Question 1 of 10
