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Geo

Soils

QuestionAnswer
What's the definition for soils ? Soil is the thin layer of loose material that covers the surface of the earth
What are the 5 materials that make up soils ? Mineral matter ,water ,air,living organisms and humus
What is the largest component of soil Mineral matter
What is mineral matter made of Broken down materials left by weathering of rocks. (Stones,sand,clay and silt)
What is the function of mineral matter It helps nourish plants that grow in the soil
What is the function of water It dissolves the minerals and nutrients in the soil which allows plants to absorb them through their roots.
Where is air found in the spaces between soil particles
What dose air supply Oxygen and nitrogen
What do living organisms do to the soil They burrow through the soil allowing water and air to pass through this helps to mix the soils
What do micro organisms do They break down dead plants and creatures to form humus
Describe humus A dark jelly like substance that is rich in nutrients
What's leaching Washing away of minerals and nutrients out of reach of plant roots by heavy rainfall
What's the most common soil in Ireland Brown soils
What's an other popular soil in Ireland Podzols
how dose the climate have an influence on soil in cold areas Freeze thaw action slowly breaks down rock this results in THIN SOILS development
How dose the climate have an influence on soil in hot areas Chemical weathering breaks down material to form DEEP SOILS
What happens in wet areas Leaching can wash materials and nutrients deep into soils causing them to become infertile
Where is brown soils usually found in Ireland In the south
Name a country where tropical red soils are found Africa
Where is plant litter On the very top
What's another word for A horizon Topsoils
What's another word for B horizon Subsoils
What's another word for C horizon Parent rock
Created by: Sophiekenna