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Questions and Answers
Which of the following is NOT a component of soil?
Which of the following is NOT a component of soil?
Humus is formed through the process of humification, where dead plants and leaves decay.
Humus is formed through the process of humification, where dead plants and leaves decay.
True (A)
What type of soil is best suited for dairy farming?
What type of soil is best suited for dairy farming?
What is the largest component of soil?
What is the largest component of soil?
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A soil with a pH of 5 is considered alkaline.
A soil with a pH of 5 is considered alkaline.
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The decomposition of dead plants and leaves creates a dark, jelly-like substance called ______.
The decomposition of dead plants and leaves creates a dark, jelly-like substance called ______.
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Match the soil particle type with its approximate size:
Match the soil particle type with its approximate size:
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What is the process called when minerals are washed out of the soil by excess water?
What is the process called when minerals are washed out of the soil by excess water?
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The shape of the land, whether upland or lowland, is known as ______.
The shape of the land, whether upland or lowland, is known as ______.
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Which of the following is NOT a benefit of living organisms in soil?
Which of the following is NOT a benefit of living organisms in soil?
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Match the following soil characteristics with their descriptions:
Match the following soil characteristics with their descriptions:
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Clay soil tends to drain well and allows water to pass through easily.
Clay soil tends to drain well and allows water to pass through easily.
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Why is air essential for plant growth?
Why is air essential for plant growth?
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Which of the following factors contributes to the formation of deep soils?
Which of the following factors contributes to the formation of deep soils?
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Granite weathers faster than limestone.
Granite weathers faster than limestone.
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What is the primary role of lime in soil management?
What is the primary role of lime in soil management?
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What is the primary function of the Nutrient Cycle?
What is the primary function of the Nutrient Cycle?
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Overgrazing can lead to increased plant cover by animals.
Overgrazing can lead to increased plant cover by animals.
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Name two nutrients that are part of the Nutrient Cycle.
Name two nutrients that are part of the Nutrient Cycle.
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If there is too much rainfall, __________ may happen, preventing plants from absorbing nutrients.
If there is too much rainfall, __________ may happen, preventing plants from absorbing nutrients.
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What can be a direct consequence of overcropping?
What can be a direct consequence of overcropping?
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Match the following causes of soil degradation with their effects:
Match the following causes of soil degradation with their effects:
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The topsoil in Ireland was protected from erosion due to the increase of sheep farming.
The topsoil in Ireland was protected from erosion due to the increase of sheep farming.
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What is one potential risk of heavy rainfall in areas affected by overgrazing?
What is one potential risk of heavy rainfall in areas affected by overgrazing?
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What is one of the primary causes of climate change?
What is one of the primary causes of climate change?
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Desertification can lead to increased rainfall in some regions.
Desertification can lead to increased rainfall in some regions.
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Name a region in Africa that is experiencing desertification.
Name a region in Africa that is experiencing desertification.
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Drought leads to __________, which causes the spread of desert into fertile land.
Drought leads to __________, which causes the spread of desert into fertile land.
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Which of the following is NOT a solution to desertification?
Which of the following is NOT a solution to desertification?
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What effect does leaching have on soil?
What effect does leaching have on soil?
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Tropical red soils are formed as a result of intense chemical weathering.
Tropical red soils are formed as a result of intense chemical weathering.
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What is the primary color of tropical red soils and why?
What is the primary color of tropical red soils and why?
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Peat soils are fertile and suitable for arable farming.
Peat soils are fertile and suitable for arable farming.
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Name the four main soil types found in Ireland.
Name the four main soil types found in Ireland.
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Match the following impacts of human activity with their effects on tropical red soils:
Match the following impacts of human activity with their effects on tropical red soils:
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A soil profile is a cross-section down through a soil that shows the different layers called __________.
A soil profile is a cross-section down through a soil that shows the different layers called __________.
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Which soil type is formed in cold, wet, upland areas and is characterized by waterlogging?
Which soil type is formed in cold, wet, upland areas and is characterized by waterlogging?
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Match the following soil types with their characteristics:
Match the following soil types with their characteristics:
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Brown earths are the most common soil type in Ireland.
Brown earths are the most common soil type in Ireland.
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What process occurs when excessive rainfall causes nutrients to wash away?
What process occurs when excessive rainfall causes nutrients to wash away?
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Flashcards
Soil Acidity
Soil Acidity
The measure of how acidic or alkaline soil is, affecting plant growth.
pH Scale
pH Scale
A scale that measures soil acidity, ranging from 0 (most acidic) to 14 (most alkaline).
Lime
Lime
A substance made from limestone, used to neutralize acidic soils.
Leaching
Leaching
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Bedrock
Bedrock
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Weathering
Weathering
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Relief
Relief
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Chemical Weathering
Chemical Weathering
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Composition of Soil
Composition of Soil
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Mineral Matter
Mineral Matter
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Humus
Humus
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Humification
Humification
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Air in Soil
Air in Soil
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Water in Soil
Water in Soil
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Soil Types
Soil Types
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Role of Living Organisms
Role of Living Organisms
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Climate change
Climate change
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Drought
Drought
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Desertification
Desertification
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Sahel region
Sahel region
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Effects of desertification
Effects of desertification
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Irrigation schemes
Irrigation schemes
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Tropical red soils
Tropical red soils
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Ecosystem
Ecosystem
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Nutrient Cycle
Nutrient Cycle
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Infertile Soil
Infertile Soil
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Overgrazing
Overgrazing
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Soil Erosion
Soil Erosion
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Overcropping
Overcropping
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Deforestation
Deforestation
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Soil Leaching
Soil Leaching
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Soil Profile
Soil Profile
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Podzol Soil
Podzol Soil
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Brown Earth Soil
Brown Earth Soil
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Peat Soil
Peat Soil
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Gley Soil
Gley Soil
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Soil and Vegetation Interconnection
Soil and Vegetation Interconnection
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Study Notes
Soil Composition
- Soil is composed of mineral matter, humus, water, air, and living organisms.
- Mineral matter is the largest component, derived from weathered bedrock. Examples include stones, sand, clay, and silt.
- Humus is a dark, jelly-like substance rich in nutrients, created by decaying plant and leaf matter. Humification is the process.
- Air fills the spaces between soil particles, essential for plant growth and providing oxygen for living organisms.
- Water dissolves minerals and nutrients, aiding plant absorption through roots.
- Living organisms such as earthworms, bacteria, and fungi contribute to soil mixing, nutrient cycling, and humus formation.
Soil Types in Ireland
- Ireland has four main soil types: Peat, Gley, Brown Earths, and Podzols.
- Peat soil: Found in bogs, black in colour, limited plant litter, high rainfall leading to waterlogging, and poor fertility.
- Gley soil: Blue-grey in colour, high rainfall and waterlogging, impermeable bedrock, and infertile.
- Brown Earths: Dark brown colour, found in the Midlands, South, and East of Ireland, plentiful plant litter, fertile, and good for arable farming.
- Podzols: Grey or light grey colour, coniferous forest areas, cold and wet, acidic, infertile, and best suited for forestry or grazing.
Soil Formation
- Soil formation factors include Bedrock, Relief, Climate, and Human Activity.
- Bedrock: Source of mineral matter. Some rocks weather quickly while others take longer, affecting the characteristics and time taken to form soil.
- Relief: Upland areas (higher) tend to be wetter and have less plant life, while lowland areas (lower) typically have well-drained soils with more humus.
- Climate: Rainfall and temperature influence weathering rates and soil depth. Cold regions have thin, slow-forming soils, while hot regions develop deep soils from rapid weathering,
- Human activity: Impacts soil composition; farming practices, irrigation, and deforestation can make soil more fertile or reduce its fertility impacting nutrients or leading to erosion and mass movement.
Soil Texture and Soil Acidity
- Clay soils are heavy, sticky, difficult to plough, and commonly used for dairy farming.
- Silt soils drain well but can get waterlogged with rainfall.
- Sand soils drain easily.
- Soil acidity, measured using the pH scale, affects plant growth. Optimal plant growth mostly occurs in a pH of 6.5.
Soil Processes and Exploitation
- Leaching: Process where water washes minerals and nutrients into lower layers or out of the soil. Excess leaching can lead to infertile soil.
- Overgrazing: Too many animals grazing in a limited area removes plant cover, exposing soil to wind and rain, causing erosion and reduced vegetation, potentially leading to landslides and further losses.
- Soil erosion: The removal of top soil, resulting from factors such as over grazing, deforestation, overcropping and climate change.
- Overcropping: Repeated farming of the same crop on the same land depletes nutrients and reduces soil quality.
- Deforestation: Removal of trees exposes the soil to the elements and reduces soil fertility
How Soil and Vegetation are Interconnected
- Soil is part of an ecosystem or biome.
- Ecosystems involve the interaction of plants, animals, and their environment.
- Soil and plants interact through the nutrient cycle.
- This cycle involves the continuous movement of elements like nitrogen, carbon, and iron between the soil and plants.
Case Studies
- Case studies of overgrazing in Ireland and human activity in Brazil illustrate the impacts of these practices on soil quality, fertility, and environmental consequences.
- Climate change-induced drought and desertification lead to famine, erosion of land, and migration.
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Description
Explore the essential components of soil and the various types found in Ireland. This quiz covers mineral matter, humus, water, air, and the living organisms that contribute to soil health. Test your knowledge on the four main soil types: Peat, Gley, Brown Earths, and Podzols.