AP Human Geography – Agriculture Practice Test

The main idea being tested is that the Green Revolution produced dramatic increases in cereal crop yields through the adoption of high-yielding varieties and intensified inputs. This movement introduced new wheat and rice varieties that responded strongly to improved practices, along with increased use of chemical fertilizers, pesticides, and expanded irrigation, all of which boosted productivity on many farms. That’s why the option describing dramatic yield increases in cereal crops is the best choice. In contrast, reduced yields did not characterize the era, fertilizer use actually rose rather than declined, and irrigation was not eliminated but expanded to support the intensified farming.