Final answer:
Common agricultural practices were a shared trait between Native Americans and West Africans before the Exploration Age, with both societies utilizing and adapting local resources for farming and sustenance.
Step-by-step explanation:
The trait that was commonly shared between Native Americans and West Africans before the Exploration Age was similar agricultural practices. Although they were diverse, African societies and Native American groups developed successful subsistence strategies that enabled them to support themselves independently. These practices were not identical but shared underlying principles of using and adapting local resources for farming and sustenance. Both societies' economies were fundamentally reliant on agriculture, even though they had differing degrees of complexity and scale in their respective production methods. What connected these societies culturally and economically were traditions and technologies that related to farming and living off the land, rather than advanced navigation techniques, shared religious beliefs, or common political systems.