Boril)
loam - ✔✔ correct answer Soil type with good drainage and texture that is ideal for agriculture.
soil profile - ✔✔ correct answer Series of layers seen as one digs down into soil.
Desert soils - ✔✔ correct answer have poorly developed horizons
asthenosphere - ✔✔ correct answer A thin flowing layer of the earth just below the outer mantle.
friable - ✔✔ correct answer ability of soil to crumble
Land and soil are related in which of the following ways? - ✔✔ correct answer Soil is found on the
surface of the land.
A grassland soil __________ than a woodland soil. - ✔✔ correct answer has a thicker A horizon
Contour farming is - ✔✔ correct answer tilling at right angles to the slope of the land.
parent material - ✔✔ correct answer Material that is weathered to become the mineral part of the soil.
Two processes which chemically alter parent material are - ✔✔ correct answer oxidation and hydrolysis.
All of the following are ways organisms affect the soil EXCEPT - ✔✔ correct answer decreasing the water
holding capacity.
Which of the following statements about soil conservation is accurate? - ✔✔ correct answer
horizon - ✔✔ correct answer horizontal layer of soil
, ENVS1126.26 Final Exam-LSUE (Dr. B.
Boril)
humus - ✔✔ correct answer formed from organic matter
All of the following are involved in maintaining good soil quality EXCEPT - ✔✔ correct answer growing
only one kind of crop for several years.
The three primary soil nutrients often in short supply are nitrogen, potassium compounds, and - ✔✔
correct answer
Genetically modified organisms are created by - ✔✔ correct answer inserting pieces of DNA into the
genetic material of an organism.
Pesticides that break down quickly are called - ✔✔ correct answer non-persistent
Modern monoculture agriculture - ✔✔ correct answer
Agriculture is the largest nonpoint source of - ✔✔ correct answer water pollution
Pesticide designed to kill mice, rats, and related organisms - ✔✔ correct answer rodenticide
Class of pesticides that interferes with normal nerve impulses. - ✔✔ correct answer organophosphate
Chemical produced by one animal that changes the behavior of another. - ✔✔ correct answer
pheremone
An unwanted plant. - ✔✔ correct answer weed
The problem of food waste is of greater concern in - ✔✔ correct answer the industrial world
Pesticide that remains active for a long period of time. - ✔✔ correct answer persistent pesticide