Soil Characteristics (Leaving Cert Geography): Quizzes
📚Quizzes
Practise the questions
13 questions from this quiz
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Practise the questions
13 questions from this quiz
Which of these is NOT one of the six main soil characteristics?
Which of these is NOT one of the six main soil characteristics?
Density
What percentage of clay particles makes a soil classified as clay soil?
What percentage of clay particles makes a soil classified as clay soil?
More than 50%
Why do sandy soils require regular irrigation and fertiliser application?
Why do sandy soils require regular irrigation and fertiliser application?
Water & nutrients wash away quickly
Why is loam considered the ideal soil for agriculture?
Why is loam considered the ideal soil for agriculture?
Equal proportions of clay, sand & silt
What are peds in relation to soil structure?
What are peds in relation to soil structure?
Clumps of soil particles bound together
Which soil structure severely limits air and water movement?
Which soil structure severely limits air and water movement?
Platy structure
What is the optimal pH level for most fertile soils?
What is the optimal pH level for most fertile soils?
Around 6.5 (slightly acidic)
What substance should be added to raise the pH of acidic soils?
What substance should be added to raise the pH of acidic soils?
Lime
What is humus?
What is humus?
Dark decomposed organic matter in soil
How does humus help prevent nutrient loss from soil?
How does humus help prevent nutrient loss from soil?
It absorbs nutrients preventing leaching
Which soil texture achieves the perfect balance of drainage and moisture retention?
Which soil texture achieves the perfect balance of drainage and moisture retention?
Loam soils
What do dark brown or black soils typically indicate?
What do dark brown or black soils typically indicate?
High humus content & fertility
What causes red soils to develop their distinctive colour?
What causes red soils to develop their distinctive colour?
High iron oxide from chemical weathering