AP Environmental Science Flashcards: Meat Production Methods
Written by AP Content Team, Verified for 2026 AP Exams, Last updated: May 2026
Review key ideas with interactive flashcards. This set includes 19 cards to help you master important concepts.
What is desertification?
Desertification is the degradation of land in low precipitation regions, causing them to become increasingly arid and desert-like.
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What is desertification?
Desertification is the degradation of land in low precipitation regions, causing them to become increasingly arid and desert-like.
Identify the two main methods of meat production.
The two main methods of meat production are concentrated animal feeding operations (CAFOs), also called feedlots, and free-range grazing.
What is a direct environmental consequence of the loss of vegetation from overgrazing?
The loss of vegetation from overgrazing leads to soil erosion, as plant roots are no longer there to hold the topsoil in place.
What are Concentrated Animal Feeding Operations (CAFOs)?
CAFOs, also called feedlots, are a meat production method where livestock are crowded together and fed grains to be quickly readied for slaughter.
What is a benefit of the meat produced through free-range grazing?
Meat from free-range grazing is typically free from antibiotics, and the animals' organic waste acts as a natural fertilizer for the land.
How can overgrazing contribute to desertification?
Overgrazing removes vegetation, which leads to soil erosion and degradation, and can cause low precipitation regions to become increasingly arid, a process known as desertification.
A country wants to conserve its water resources and improve its topsoil. What dietary shift among its population would support these goals?
A shift toward less meat consumption would support these goals by conserving water and helping to improve topsoil.
What is overgrazing?
Overgrazing occurs when too many animals feed on a particular area of land, causing a loss of vegetation.
A farmer notices large patches of bare earth and increased soil runoff in their pasture after doubling their herd of cattle. What is the likely cause?
The likely cause is overgrazing, where too many animals have consumed the vegetation, leading to soil erosion.
What is a primary benefit of CAFOs for consumers?
A primary benefit of CAFOs is that they produce meat less expensively, making the final product more affordable for consumers.
List three types of emissions that could be reduced by consuming less meat.
Consuming less meat could reduce emissions of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O).
How does the land-use efficiency of meat production compare to agriculture for plants?
Meat production is less efficient, requiring approximately 20 times more land to produce the same amount of calories from meat as from plants.
A large-scale cattle operation is found to be the source of high levels of nitrate contamination in a nearby river. What type of meat production method is most likely being used?
A Concentrated Animal Feeding Operation (CAFO) is the most likely source, as they generate large amounts of organic waste in a small area that can contaminate water.
How does the diet of animals in CAFOs typically differ from those in free-range systems?
Animals in CAFOs are typically fed grains, while animals in free-range systems are allowed to graze on grass.
What is another name for Concentrated Animal Feeding Operations (CAFOs)?
Another name for CAFOs is feedlots.
Besides reducing emissions and antibiotic use, name two other benefits of less meat consumption.
Less meat consumption can help conserve water and improve topsoil quality.
What is a major environmental drawback of CAFOs?
CAFOs generate large amounts of organic waste, which can contaminate ground and surface water if not managed properly.
What is free-range grazing?
Free-range grazing is a method of meat production that allows animals to roam and graze on grass in a large outdoor area.
What are the main drawbacks of free-range grazing?
Free-range grazing requires large areas of land and is a more expensive method of meat production for consumers.