Practice Exam 1 Soils And Water PDF
Document Details
Uploaded by InspiringNumber
University of Montana
Tags
Summary
This is a practice exam covering soils and water, with 20 multiple-choice questions. The questions cover topics such as soil properties, water movement, and human impact on these systems.
Full Transcript
uestions: Q 1. What occurs when soil is fully saturated? A. Increased transpiration B. Saturated soils C. Decreased nutrient retention D. Enhanced drainage 2. What is the main driver of water movement in saturated soils? A. Capillary action B. Osmotic potential...
uestions: Q 1. What occurs when soil is fully saturated? A. Increased transpiration B. Saturated soils C. Decreased nutrient retention D. Enhanced drainage 2. What is the main driver of water movement in saturated soils? A. Capillary action B. Osmotic potential C. Gravitational forces D. Transpiration 3. What does the Munsell Soil Color Chart help to classify? A. Soil texture B. Soil color C. Soil moisture D. Soil structure 4. What is the role of macropores in soil? A. Facilitate water drainage B. Increase soil compaction C. Enhance nutrient retention D. Reduce soil erosion 5. What is the relationship between small particles and mineral content in soils? A. Small particles have low mineral content B. Small particles have high mineral content C. Small particles have no effect on mineral content D. Small particles reduce nutrient retention 6. What is the primary input of water to terrestrial ecosystems? A. Irrigation B. Evaporation C. Precipitation D. Transpiration 7. What is the effect of deforestation on transpiration rates? A. Increases transpiration B. Decreases transpiration C. No effect on transpiration D. Increases soil moisture 8. What does the term 'steady state' refer to in water systems? . Unbalanced water levels A B. Stable water levels over time C. Increased water input D. Decreased water output 9. What is the primary function of mesopores in soil? A. Facilitate water drainage B. Store nutrients C. Support root penetration D. Retain moisture 10. What is the impact of soil texture on water infiltration? A. No impact B. Decreases infiltration C. Increases infiltration D. Varies with soil type 11. What is saturated hydraulic conductivity (Ksat)? A. A measure of soil's ability to retain water B. A measure of soil's ability to transmit water when saturated C. A measure of soil's nutrient content D. A measure of soil's compaction 12. What influences water movement based on solute concentration? A. Gravitational potential B. Osmotic potential C. Matric potential D. Capillary action 13. What is the effect of temperature on evaporation? A. No effect B. Increases evaporation C. Decreases evaporation D. Varies with humidity 14. What is the primary cause of increased runoff due to land use changes? A. Increased vegetation B. Decreased soil compaction C. Less vegetation D. Increased soil moisture 15. What is the effect of human activities on water availability? A. Increases water availability B. Decreases water availability . No effect on water availability C D. Improves water quality 16. What is the role of biological processes in soil? A. Decrease soil structure B. Contribute to aggregate formation C. Reduce nutrient cycling D. Increase soil erosion 17. What is the effect of soil compaction on water retention? A. Increases water retention B. Decreases water retention C. No effect on water retention D. Improves nutrient availability 18. What is the primary factor influencing soil moisture levels? A. Soil texture B. Soil color C. Soil structure D. Soil temperature 19. What is the impact of freeze-thaw cycles on soil? A. Improves soil structure B. Reduces soil moisture C. Increases soil erosion D. Affects soil compaction 20. What is the primary purpose of irrigation in agriculture? A. Increase soil compaction B. Support agricultural production C. Reduce water availability D. Enhance soil erosion nswers: A 1. B 2. C 3. B 4. A 5. B 6. C 7. B 8. B 9. D 0. C 1 11. B 12. B 13. B 14. C 15. B 16. B 17. B 18. A 19. A 20. B
