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Food and Agriculture
Key terms for Chapter 15
18
Environmental Studies
9th Grade
04/16/2020

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Term
diet
Definition
the type and amount of food that someone eats
Term
yield
Definition
the amount of food that can be produced in a given area
Term
famine
Definition
widespread starvation caused by a shortage of food
Term
malnutrition
Definition
a condition that occurs when people do not eat enough to fulfill their body's needs.
Term
arable land
Definition
land that can be used to grow crops
Term
topsoil
Definition
the surface layer of soil, which is usually richer in organic matter
Term
erosion
Definition
the wearing down of rock or soil by wind and water
Term
desertification
Definition
the process by which land in arid or semiarid areas become more desert-like
Term
compost
Definition
partly decomposed organic material
Term
salinization
Definition
the accumulation of salts in the soil
Term
pesticides
Definition
chemicals used to kill insects and other crop pests
Term
biological pest control
Definition
the use of living things to control pests
Term
genetic engineering
Definition
the technology in which genetic material in a living cell is modified for medical or industrial use
Term
domesticated
Definition
animals that are bred and managed by humans
Term
overharvesting
Definition
catch or removing from a population more organisms than a population can replace
Term
aquaculture
Definition
the raising of aquatic organisms for human use or consumtion
Term
livestock
Definition
domesticated animals raised to be on a farm or ranch or to be sold for profit
Term
ruminants
Definition
cattle, sheep, and goats are cud-chewing mammals that have three or four chambered
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