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Questions and Answers
Soil consists of mineral and rock particles, organic matter, water, and air.
True
Irish soils are old because they were formed before the last Ice Age.
False
Soil does not provide a medium for plant growth.
False
There are four groups of rocks: igneous, sedimentary, metamorphic, and volcanic.
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Marble is formed from metamorphic rocks.
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Physical weathering due to frost can cause rocks to shatter and break.
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Root activity does not contribute to rock breakdown.
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Chemical weathering involves a chemical reaction between water and rock minerals.
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Sedimentary rocks are formed when molten rock solidifies.
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Hydration is the removal of water from a rock mineral.
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Biological decomposition of rocks is primarily caused by birds.
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Parent Material has no impact on the acidity and texture of soil formed from it.
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Soils on slopes are thick and hold a shallow depth of soil in the areas below.
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Aspect of the land has no effect on the temperature of the soil.
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Climate has no impact on the weathering of rocks through frost action.
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Soils that develop under trees are generally less acidic.
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Burrowing from animals and plant roots do not contribute to the weathering of rocks.
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Peat is mainly produced from animal remains when oxygen is present.
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Study Notes
Soil Composition
- Soil consists of mineral and rock particles, organic matter, water, and air.
Soil Formation
- Irish soils are old because they were formed before the last Ice Age.
Rock Classification
- There are four groups of rocks: igneous, sedimentary, metamorphic, and volcanic.
- Marble is formed from metamorphic rocks.
Weathering Processes
- Physical weathering can cause rocks to shatter and break due to frost.
- Chemical weathering involves a chemical reaction between water and rock minerals.
Rock Breakdown
- Root activity and burrowing from animals and plant roots contribute to rock breakdown.
- Chemical weathering is a key process in rock breakdown.
Soil Formation Factors
- Parent Material has an impact on the acidity and texture of soil formed from it.
- Aspect of the land affects the temperature of the soil.
- Climate impacts the weathering of rocks through frost action.
Soil Characteristics
- Soils that develop under trees are generally less acidic.
- Soils on slopes are thin and hold a deeper soil depth in the areas below.
Peat Formation
- Peat is mainly produced from plant remains when oxygen is limited.
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Description
Explore the formation of soil, which consists of mineral and rock particles, organic matter, water, and air. Learn about the importance of soil in providing a medium for crop growth, physical support for plant roots, and nutrient recycling through decomposition. Discover how soil holds essential elements like water and air for plant growth.
