Chapter 7 Agriculture Assignment

The root cause of food insecurity is

• poverty
• climate change
• corruption
• salinization of soil

Which of the following describes a fundamental characteristic of the Green Revolution?

• The application of higher levels of organic fertilizers.
• The addition of calorie, fat, and fiber content to food labels.
• The development of new strains of crops with higher yields.
• Deforestation to provide crops with additional sunlight.

Traditional farmers grow several crops on the same plot of land in a practice referred to as

• monoculture
• polyculture
• aquaculture
• slash and burn

The use of synthetic fertilizers can increase crop yield, but also

• destroy nitrifying bacteria in the soil
• increase nutrient runoff into nearby surface waters
• slow the release of organic nutrients from compost
• increase fish populations in nearby streams

Concentrated Animal Feedlot Operations (CAFO's) can BEST be described as...

• a method of producing meat with more land
• an experiment to test the effectiveness of antibiotics
• the storing of grain as a nutritional supplement
• large numbers of livestock in confined spaces

All of the following are disadvantages of raising animals in feedlots, EXCEPT

• less land use
• uses more water
• produces large amounts of animal waste
• increased antibiotic use

Which of the following are harmful effects of agriculture?

• Algal blooms due to fertilizer runoff
• Climate change associated with methane emissions from livestock and rice paddies
• Pesticide residue in food, water, and air
• All of the above

Which of the following best describes a genetically modified organism (GMO)?

• An organism that has been selectively bred for the best traits
• An organism that contains foreign DNA
• An organism that is produced after exposure to a mutagen.
• An organism that has been cloned

Which of the following soil erosion techniques is demonstrated in the picture?

• contour plowing
• terracing
• windbreaks
• intercropping

Which of the following best describes the process of desertification?

• A drop of productivity of land of more than 10%.
• Caused by overgrazing and soil erosion.
• Occurs in arid or semi-arid areas.
• All of the above