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