Final answer:
The location of a mission shows human-environment interaction by reflecting the suitability of the environment for sustaining the mission's activities and influencing settlement patterns, which is a part of cultural ecology.
Step-by-step explanation:
The location of a mission demonstrates the impact of geography on human activities, which is a form of human-environment interaction. Missions were often established in places that could support their economic and religious purposes, indicating access to resources, a suitable climate for agriculture, or proximity to populations for evangelization efforts. The location reflects the interplay between human needs and environmental characteristics, which is a core aspect of cultural ecology.
Missions often influenced settlement patterns, serving as centers for agriculture, trade, and cultural exchange, further altering the cultural landscape of a region. They may have also initiated changes in local politics or economy, demonstrating cultural integration and evolving settlement patterns.