source: library of congress\nthe images show devices developed during the second agricultural revolution…

source: library of congress\nthe images show devices developed during the second agricultural revolution. which of the following best describes the impacts of the second agricultural revolution?\na genetically modified crops and ever - increasing levels of mechanization, as shown in the images, drove productivity up and made hunger a thing of the past.\nb innovations such as crop rotations and hybrid selection, facilitated by the technology shown in the images, made agriculture productive enough to support the growth of urban centers and led to the creation of modern civilization.\nc the adaptation of newly introduced crops such as potatoes and corn from the new world, which were planted and harvested using the technology shown in the images, made european farms more productive, which led to better diets, longer life expectancies, and more people available for work in factories.\nd technological innovations, such as the devices shown in the images, and increased agricultural productivity led to better diets, longer life expectancies, and more people available for work in factories.\ne the second agricultural revolution is ongoing, as engineers continue to improve agricultural machinery and scientists search for crops adapted to the drier, warmer climates predicted for the coming decades.
Answer
Brief Explanations:
- Option A: Genetically modified crops are part of the Third Agricultural Revolution, not the Second, so A is incorrect.
- Option B: Crop rotations and hybrid selection are more associated with the First Agricultural Revolution's later developments or early Second, but the key impact of the Second (mechanization, new tech) leading to urban growth and factory labor is better captured by D. Also, "creation of modern civilization" is too broad.
- Option C: The introduction of New World crops (potatoes, corn) was part of the Columbian Exchange, more related to the First Agricultural Revolution's global impacts or pre - Second, and the technology in the images is from the Second (mechanized), so C misattributes the crop introduction to the Second's technology.
- Option D: The Second Agricultural Revolution featured technological innovations (like the devices in the images, mechanization) that increased agricultural productivity. This led to better diets (more food), longer life expectancies, and released labor for factories (as less labor was needed in agriculture), which matches the impacts of the Second Agricultural Revolution.
- Option E: The Second Agricultural Revolution was a historical period (18th - 19th century), while the ongoing agricultural changes with climate - adapted crops are part of modern agriculture (including the Third Revolution), so E is incorrect.
Answer:
D. Technological innovations, such as the devices shown in the images, and increased agricultural productivity led to better diets, longer life expectancies, and more people available for work in factories.