Geography is a significant factor that can explain differences in agricultural productivity across North American countries. Canada, the United States, and Mexico all have unique geographical characteristics that affect their agricultural productivity.

First, the United States has a diverse range of geographical features that contribute to its agricultural productivity. The Midwest region, known as the "breadbasket" of America, has flat terrain and fertile soil that makes it ideal for growing crops such as corn and wheat. The Mississippi River, which runs through the center of the United States, provides irrigation and transportation for agricultural products. The warm climate and long growing season in California also make it a significant producer of fruits and vegetables. These geographical advantages contribute to the high agricultural productivity of the United States.

In contrast, Canada has a colder climate and shorter growing season, which limits its agricultural productivity. However, Canada also has vast tracts of fertile land in the Prairies region, which has a continental climate and receives ample rainfall. This region is ideal for growing wheat, canola, and other crops. The Canadian government has also invested in research and development to develop new varieties of crops that can thrive in the colder climate, which has helped to increase agricultural productivity in recent years.

Mexico also has unique geographical features that contribute to its agricultural productivity. The country has a diverse range of climates and terrains, ranging from tropical rainforests to arid deserts. This diversity allows for the production of a wide range of crops, including coffee, avocados, and citrus fruits. However, Mexico also faces challenges related to water scarcity, soil erosion, and deforestation, which can limit agricultural productivity in some regions.

In addition to geographical factors, other factors such as government policies, infrastructure, and access to markets also play a role in determining agricultural productivity. However, geography remains a significant factor that can explain some of the differences in agricultural productivity across North American countries.

Geography can explain some of the differences in agricultural productivity across North American countries. The United States, Canada, and Mexico all have unique geographical features that contribute to their agricultural productivity. While other factors also play a role, understanding the geographical factors that affect agricultural productivity can help policymakers develop more effective strategies to promote sustainable and productive agriculture in the region.