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 Plant roots All of these Soil microorganisms 2. In organic farming, a complete and effective crop rotation plan is specifically designed to include __________ Leguminous crops Shallow-rooted crops Deep-rooted crops All of these 3. _____________is the most frequently used carrier for the rhizobial inoculants. Soil Water Peat Compost 4. Deficiency of __________ is closely associated with chlorosis (yellowing of leaves) in plants Potassium Boron Magnesium Phosphorus 5. _______ is the soil area surrounding plant roots where biological and chemical interactions occur Aerosphere Hydrosphere Rhizosphere Biosphere 6. __________ nutrient is critical for the synthesis of ATP Phosphorus Potassium Nitrogen Calcium 7. What does REDD+ stand for? Renewable Energy Development Department Renewable Energy and Development Division Reducing Emissions from Deforestation and Forest Degradation Reducing Emissions from Developed Countries 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 Ozone Layer The Humus Layer A Mulch Layer 9. The primary purpose of crop rotation is to maintain _________ Soil health Water conservation Crop production Erosion 10. Deep-rooted crops can help to_________ Bring up nutrients from deeper soil layers Decrease soil water infiltration Increase soil salinity Reduce soil nutrient availability Loading … Question 1 of 10
