MCQs Soil Science-51 Posted on May 10, 2025August 30, 2025Author agropublishers 0 1. Glucose and fructose are examples of ___________ Nucleic acids Carbohydrates Proteins Fats 2. What defines a soil series? Soils with similar profile characteristics Soils grouped by vegetation type Soils classified by climate Soils with highly variable profiles 3. The presence of alluvial deposits is primarily characteristic of ________ Desert Ocean basins Glacial moraines River valleys 4. Scientific evidence, based on the study of meteorites and moon rocks, indicates that Earth was formed approximately ___________ 4.6 million years ago 46,000 years ago 4.6 billion years ago 460,000 years ago 5. ____________ can vary within a soil phase Only organic matter Soil color but not texture Slope, erosion, and gravel content Only mineral content 6. What evidence suggests that many layers of rock on Earth have been deformed? We can observe rock deformation in real-time during earthquakes Earth’s size reduction over time caused rock deformation They form in horizontal layers but are now folded or tilted Rocks on other planets show similar deformation 7. __________ is an essential component of both mica and clay minerals Calcium Iron Sodium Silicon 8. _______ is a soil particle that feels gritty and allows rapid water drainage Organic Matter Clay Silt Sand 9. __________ is a direct source of river water Ocean tides Groundwater springs Residential sewer discharge Volcanic eruptions 10. Which of the following cellular components allows the selective movement of substances to enter and exit the cell? Cell wall Vacuole Endoplasmic reticulum Cell membrane Loading … Question 1 of 10
