Types
The soil type that is gritty, smooth, and shifting.
Sand.
What are some living examples?
Bacteria, fungi, and earthworms.
What are some examples?
Mineral and rock particles. Consisting of sand, silt, and clay.
Soil is alive.
True
The soil type that is made up of very fine grains.
Silt.
Organic matter from animals.
Waste and decomposing remains.
What does inorganic matter do?
Provide physical structure needed to anchor plant roots and essential mineral nutrients that plants require for growth.
There is carbon in soil.
True.
The soil type that is moldable.
Clay.
Matter left from plants.
Decaying leaves, roots, and stems.
What is this technically considered?
Dirt.
All soil on Earth is identical.
False.
The soil type ideal for agriculture.
Loam.
How this benefits soil.
Improves soil structure, enhances water retention, fuels biological activity, and regulates nutrient supply.
what is soil porosity?
"the fraction of total soil volume taken up by empty spaces, or "pores"
Which are created by inorganic matter.
All soil could live without the sun.
False.
The graphical tool used to classify soils 12 textural classes based on percentages.
The soil texture triangle.
What is Humus?
The highly nutrient-rich organic matter that forms in soil when plant and animal materials have fully decayed.
What elements are released?
Potassium, calcium, and magnesium.
Around 59% of all species on Earth live in the soil.
True.