The Green Revolution (College Board AP® Environmental Science): Flashcards
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- FrontThe Green Revolution
Define Green Revolution.
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Cards in this collection (16)
Define Green Revolution.
The Green Revolution was a period of widespread agricultural transformation, beginning in the mid-20th century, that aimed to increase global food production.
What did the Green Revolution introduce to agriculture?
The Green Revolution introduced modern farming techniques, high-yield crop varieties, and new agricultural technologies.
Define mechanization of farming.
Mechanization of farming is the use of machines and technology to perform agricultural tasks traditionally done by manual labor or animals.
Bt corn is a genetically modified crop engineered to be resistant to .
Bt corn is a genetically modified crop engineered to be resistant to pests.
True or False?
Increased use of synthetic fertilizers during the Green Revolution had no impact on waterways.
False.
Runoff from excess fertilizer causes eutrophication, polluting waterways and harming aquatic life.
What are the drawbacks of genetically modified crops?
Genetically modified crops have led to a loss of crop genetic diversity and concerns over unknown long-term health effects.
How does mechanization increase crop yields?
Machines work faster and with greater precision than human labor, reducing the time needed for planting, harvesting, and irrigation and leading to more frequent and higher yields.
How did large-scale irrigation improve food security?
Large-scale irrigation improved crop growth in dry areas and enabled year-round farming.
Overuse of water for irrigation led to groundwater depletion and soil .
Overuse of water for irrigation led to groundwater depletion and soil salinization.
How does mechanization reduce labor costs?
Mechanized farms need fewer workers, so they can expand in size without a proportional increase in labor.
What are the negative impacts of widespread pesticide use?
Widespread pesticide use causes pesticide resistance in pests, contamination of soil and water, and harm to beneficial insects such as pollinators.
True or False?
Mechanization makes agricultural products more expensive for consumers.
False.
Mechanization allows the mass production of food, making agricultural products more affordable.
Why does mechanization increase reliance on fossil fuels?
Most farm machinery runs on diesel or gasoline, contributing to carbon emissions and air pollution.
How does heavy farm machinery affect soil?
Heavy machinery compacts the soil, reducing water infiltration and root growth, which can lower crop yields over time.
Why can small-scale farmers struggle to mechanize?
Mechanized equipment has high initial investment costs and is expensive to purchase and maintain.
Why can mechanization cause unemployment in rural areas?
Reduced demand for farm labor causes job losses, particularly in developing countries where farming is a major source of employment.
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