Answer:
D) Using seeds and parts of crops that are not consumed by humans as food for livestock
Step-by-step explanation:
Using seeds and parts of crops that are not consumed by humans as food for livestock is one way to create a sustainable practice between the green system and the meat system. This practice, known as feed conversion efficiency, involves using crop byproducts to feed livestock instead of relying on grain and other feed sources that require significant amounts of land and resources to produce. By using crop byproducts as feed, the livestock industry can reduce its environmental impact and create a more sustainable food system. Additionally, this practice can help reduce waste and make more efficient use of agricultural resources.