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__________ Lower fertilizer application rates Higher fertilizer application rates Less frequent irrigation More frequent irrigation 3. Soil pH is a measure of__________________ Organic matter Hydrogen ion concentration Nutrient content Soil water contents 4. ________is a key component of certain amino acids, which are crucial building blocks of proteins. Copper Calcium Sulfur Potassium 5. In the Earth’s atmosphere, the majority of nitrogen is present in the form of ____________ Ammonium ions (NH₄⁺) Ammonia (NH₃) Nitrogen gas (N₂) Nitrite ions (NO₂⁻) 6. A soil solution with pH 7 is a _____ solution. Acidic Neutral Basic None of these 7. Due to high _____________ and high rain intensity much of the rainfall is being lost through evaporation and runoff Drought Temperature pH Salinity 8. 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. False True 9. Siderophores primarily increase the availability of ____________, a micronutrient, in calcareous soils Manganese Copper Zinc Iron 10. What plays a crucial role in forming stable soil aggregates, thereby enhancing soil structure and reducing erosion? Earthworms Soil microorganisms Plant roots All of these Loading … Question 1 of 10