Answer:
The rock resistance and slope of an area have a significant impact on agriculture and economic development. The crops that can be grown in an area are influenced by the type of land and rock present, as it determines the soil quality and drainage capabilities. In areas with hard rock and steep slopes, farming is challenging, and terracing may be required to prevent soil erosion. This can increase the cost of agricultural production, affecting the area's economic development. Moreover, high rock resistance can limit the natural resources available for mining activities and construction, which further hinders economic growth. The terrain can also make transportation challenging, hindering access to markets, which reduces the economic potential of the area. Therefore, understanding the rock resistance and slope of an area is crucial for developing and implementing effective agriculture and economic policies.