Soil system
The four components of soil.
What are organic matter, air, water and minerals?
It refers to the shape and arrangement of the soil particles in the soil.
What is soil structure?
It is the uppermost layer of soil that contains leaf litter.
What is the O Horizon (organic horizon)?
Which type of soil has highest primary productivity and is best for cultivation?
Loam soil
Two reasons for soil degradation.
What are commercial farming, erosion, global warming, etc.
Two inputs of a soil system.
What are organic matter from dead organisms, inorganic matter from the breakdown of parent material and precipitation.
It refers to the proportion of differently sized particles such as sand, silt and clay in a soil.
What is soil texture?
The type of farming used most often in the US that uses large plots of land over and over.
What is intensive commercial farming?
Which type of soil has highest water-holding capacity and is heavy to cultivate?
Clay soil
The type of resource that fertile soil is considered.
What is a nonrenewable resource?
The three stages of soil formation.
What are weathering, introduction of living organisms and transformation?
It is a triangular graph that is used to show soil textural groups.
What is a soil texture triangle?
The type of farming that does not use pesticides, hormones, or other unnatural items but is not fully regulated.
What is organic farming?
Which type of soil is comprised of sand, silt and clay in about 40-40-20%?
Loam soil
Decomposed vegetation forming organic-rich soil.
What is humus?
Two outputs in a soil system.
Nutrients for plants, weathered topsoil, crops for human use etc.
The soil type with the lowest porosity.
What is sand soil?
The three types of subsistence farming.
What is nomadic, intensive and shifting agriculture?
Which type of soil has a very good drainage and dries out fast?
Sandy soil
Two tactics for improving soil fertility and health.
What are organic farming, tillage, crop rotation, etc.
The type of system that soil is.
What is an open system?
The soil type with the highest productivity.
What is loam soil?
Three differences between intensive and organic beef production.
Intensive beef production: what is grain-based feed and confined spaces? Organic systems what is pasture grazing and natural diets?
Organic beef prohibits routine antibiotics and hormones, unlike intensive systems that often rely on them for growth and disease control.
Intensive farming has a higher environmental impact, whereas organic production supports biodiversity and soil health.
Which type of soil has poor aeration and compacts easily?
Clay soil
The percentage of the children on food assistance at least once in their lifetime in the US.
What is 50 percent?