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