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 Soil microorganisms Plant roots All of these 2. 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 3. _____________is the most frequently used carrier for the rhizobial inoculants. Water Compost Soil Peat 4. Deep-rooted crops can help to_________ Bring up nutrients from deeper soil layers Reduce soil nutrient availability Increase soil salinity Decrease soil water infiltration 5. Deficiency of __________ is closely associated with chlorosis (yellowing of leaves) in plants Magnesium Phosphorus Potassium Boron 6. __________ nutrient is critical for the synthesis of ATP Calcium Potassium Nitrogen Phosphorus 7. _______ is the soil area surrounding plant roots where biological and chemical interactions occur Rhizosphere Hydrosphere Biosphere Aerosphere 8. The primary purpose of crop rotation is to maintain _________ Soil health Erosion Crop production Water conservation 9. What does REDD+ stand for? Renewable Energy and Development Division Renewable Energy Development Department Reducing Emissions from Developed Countries Reducing Emissions from Deforestation and Forest Degradation 10. In organic farming, a complete and effective crop rotation plan is specifically designed to include __________ Deep-rooted crops Shallow-rooted crops All of these Leguminous crops Loading … Question 1 of 10
