Answer:
The Office of Agricultural Policy promotes American farmers and ranchers' economic growth by expanding international markets for their goods, fostering straightforward, predictable, and science based regulatory structures abroad, and lowering unnecessary trade barriers around the world. The Agricultural Improvement Act of 2018, the most recent of these Farm Bills, authorizes policies in the areas of commodity programs and crop insurance, agricultural land management, agricultural trad, nutrition, and farm subsidies. Agricultural policies and practices are essential for increasing the resilience of agricultural landscapes and agriculture-based livelihoods to social ecological shocks and stresses, especially in developing economies like Sub-Saharan Africa.
Hope this helps! I also included why they're essential as well.