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Soil

A Level Environmental Science revision; Awesome Rat King Likes Soil Clump Pudding;
Quiz by
stwvlker
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Last updated: March 20, 2025
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First submittedFebruary 13, 2025
Times taken13
Average score6.7%
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Hint
Answer
A
Rate of erosion
R
Rainfall erosivity
K
Soil erodability
L
Slope length
S
Slope gradient
C
Crop management
P
Erosion control
Actions that decrease nutrient levels
Soil erosion
Actions that decrease nutrient levels
Biomass removal
Causes of soil compaction
Heavy machinery
Causes of soil compaction (3 words)
High livestock density
Crumb peds (2)
Small, round
Dark organic matter formed by decomposition
Humus
Define soil fertility (5 words)
Ability to sustain plant growth
Human activities increasing soil erosion
Vegetation removal
Human activities increasing soil erosion
Compaction
Human activities increasing soil erosion
Ploughing
Human activities increasing soil erosion
Overgrazing
Human activities increasing soil erosion
Reduced soil biota
Human activities increasing soil erosion
Cultivating slopes
Effects of soil erosion
Reduced productivity
Effects of soil erosion
Sedimentation
Effects of soil erosion
Atmospheric particulates
Effects of soil erosion
Desertification
Erosion management strategies
Long-term crops
Erosion management strategies
Multi-cropping
Erosion management strategies
Contour ploughing
Erosion management strategies
Tied ridging
Erosion management strategies
Terracing
Erosion management strategies
Windbreaks
Erosion management strategies
Organic matter
Erosion management strategies
Livestock management
Factors of fertility
Water content
Factors of fertility
Aeration
Factors of fertility
Nutrients
Factors of fertility
Dead organic matter
Factors of fertility
Soil biota
Factors of fertility
pH
Factors of fertility
Texture
Factors of fertility
Structure
Human activities affecting fertility
Ploughing
Human activities affecting fertility
Compaction
Human activities affecting fertility
Drainage
Human activities affecting fertility
Irrigation
Human activities affecting fertility
pH
Free living bacterium
Azotobacter
How fertile soils manage toxicity
Adsorb toxic ions
Fungi that forms symbiotic relationships to increase P update
Mycorrhizal
How are articles affected by rain splash erosion (3 words)
Dislodged and dispersed
How decomposers break down organic matter
Digestive enzymes
Humus can hold how much x it's weight in water
10
Ideal soil pH
5.5-7
Importance of aeration
Aerobic organisms
Importance of controlling livestock access to rivers
Reduce sedimentation
Importance of dead organic matter
Plant nutrients
Importance of dead organic matter
Water retention
Importance of dead organic matter
Food for soil biota
Importance of deep soils (3 words)
Aids root anchorage
Importance of deep soils (4 words)
Less dry or waterlogged
Importance of detritivores
Breaks up dead organic matter
Hint
Answer
Importance of nitrifying bacteria (6 words)
Converts ammonium ions to nitrate ions
Importance of nitrogen-fixing bacteria (6 words)
Converts gaseous nitrogen to ammonium ions
Importance of nutrients (soluble materials)
Plant growth
Importance of water content
Soil biota survival
Importance of water content
Avoid waterlogging
Importance of worms
Increase aeration
Irrigation increases
Dissolved nutrients
Irrigation increases (3 words)
Stomata gaseous exchange
Long term crop example
Permanent grassland
Long term crop example
Cotton
Long term crop example (2)
Tea, coffee
Macronutrients
Ionic forms
Micronutrients
Minerals
Methods to increases nutrient levels (2)
Fertilisers, organic matter
Natural erosion management
Vegetation
Natural erosion management
Organic matter
Natural erosion management
Infiltration
Most effective formation of strip cropping
Right angle to prevailing wind direction
Negative effects of acidic soils
Inhibits nutrient uptake
Negative effects of acidic soils
Mobilises toxic ions
Negative effects of alkaline soils
Inhibits nutrient solubility
Oxidisation of what fertilisers releases NOx
Ammonium sulfate
Platy peds (2)
Large, flat
Ploughing and drainage can ...
Damage soil biota
Ploughing and drainage increases (2)
Aeration, biota action
Ploughing at a 90 degree angle to a slope to reduce run off velocity (initials)
CP
TR divides land into what (4 words)
Criss cross intersecting ridges
Reducing livestock density reduces (3) NOT SEDIMENTATION
Compaction, overgrazing, trampling
Root nodule bacterium
Rhizobium
Sedimentation reduces
Flow capacity
Soil compaction increases
Pollution
Soil compaction increases
Waterlogging
Soil compaction reduces (2)
Aeration, permeability
Soil erosion makes it hard for plants to grow, causing...
Desertification
Terracing increases
Infiltration
Types of soil erosion
Rain splash
Types of soil erosion
Surface runoff
Types of soil erosion
Slumping
Types of soil erosion
Wind
Loam 2:2:1 ratio
sand, silt, clay
Types of soil texture
Clay
Types of soil texture
Silt
Types of soil texture
Sand
Types of soil texture
Loam
tha⁻¹yr⁻¹
tonnes per hectare per year
Types of soil water
Capillary
Types of soil water
Hydroscopic
Types of soil water
Gravitational
USLE
Universal Soil Loss Equation
USL equation
A=RKLSCP
USLE estimates the rate of erosion for particular ______ and ______
conditions, practices
Gravitational water
Absorbed and drains easily
Hydroscopic water
Held by adhesive forces, cannot be absorbed
Capillary water
Held by particles, can be absorbed
What can help terracing to slow water
Retaining walls
What ploughing feature stops water flow
Furrows
What structure does terracing create (4 words)
Series of narrow fields
What holds clay soils together
Capillary action
Wind erosion effects soils which have less
Particle cohesion
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