Which of the following is a disadvantage associated with the genetic modification of crops?
Genetically modified crops have a decreased resistance to drought.
Genetic modifications decrease nutritional content in foods.
Genetically modified crops have a shorter shelf life and are more difficult to transport long distances.
Genetically modifications can decrease the genetic diversity of crop species.
Which of the following is the most likely unintended consequence of using pesticides in agriculture?
The continual use of pesticides can lead to an increase in soil biodiversity from increased soil quality.
The continual use of pesticides can cause organisms to build a resistance through genetic mutation that then requires more or stronger pesticides.
Pesticides increase the amount of vegetation available for cattle in free range grazing, which causes the cattle to graze over a larger land area.
Pesticides can contaminate water sources near agricultural areas causing an increase in primary productivity that leads to eutrophication.
Integrated pest management (IPM) uses a variety of techniques to reduce pest populations while reducing the economic damage caused by pests.
Which of the following techniques is a mechanical IPM method for reducing pests?
The use of monocultures to keep the population size of pest species low
The use of a predator or parasites to keep the population size of pest species low
The use of pesticides sprayed on fields to kill pests and keep population sizes low
The use of screens or traps to prevent pests from entering the crop area
Switching from customary large-scale agricultural practices to which of the following is most likely to reduce the exposure of farmworkers and nearby residents to toxic chemicals?
No-till cultivation
Crop dusting
Contour plowing
Integrated pest management
Which of the following describes a fundamental characteristic of the green revolution in food resources?
The application of higher levels of organic fertilizers to increase rice production
Deforestation to provide field crops with increased sunlight for photosynthesis
The addition of calorie, fat, and fiber percentage to the information provided on food package labels
The development of new strains of crops with higher yields