MCQs Soil Science-55 Posted on August 23, 2025September 1, 2025Author agropublishers 0 MCQs Soil Science-55 1. Better management of rainwater in rainfed systems can reduce excessive runoff, leading to soil erosion and poor yields due to a lack of soil moisture False False 2. Shallow-rooted crops require__________ Less frequent irrigation Higher fertilizer application rates Lower fertilizer application rates More frequent irrigation 3. What plays a crucial role in forming stable soil aggregates, thereby enhancing soil structure and reducing erosion? Earthworms Plant roots Soil microorganisms All of these 4. Due to high _____________ and high rain intensity much of the rainfall is being lost through evaporation and runoff Salinity Temperature pH Drought 5. Water can play a crucial enabling role in strengthening the resilience of social, economic, and environmental systems in the face of rapid and unpredictable changes. True False 6. Siderophores primarily increase the availability of ____________, a micronutrient, in calcareous soils Copper Manganese Zinc Iron 7. A soil solution with pH 7 is a _____ solution. None of these Neutral Acidic Basic 8. ________is a key component of certain amino acids, which are crucial building blocks of proteins. Potassium Calcium Sulfur Copper 9. Soil pH is a measure of__________________ Organic matter Hydrogen ion concentration Soil water contents Nutrient content 10. In the Earth’s atmosphere, the majority of nitrogen is present in the form of ____________ Ammonium ions (NH₄⁺) Nitrite ions (NO₂⁻) Nitrogen gas (N₂) Ammonia (NH₃) Loading … Question 1 of 10