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