Final answer:
Geography is the study of the earth's physical features and human activity's impact on the environment, integrating both physical and human geography.
Step-by-step explanation:
The field of study that involves the physical features of the earth and its atmosphere, as well as human activity and its impact on these aspects, is called geography. Geography is a discipline that bridges the social sciences with the physical sciences, and it encompasses both physical geography and human geography. Physical geography focuses on the planet's physical systems including geomorphology, climatology, and biogeography among others. Conversely, human geography examines the spatial distribution of human populations, their cultures, economies, and interactions with the environment. Tools like GIS, GPS, and remote sensing help geographers to study the spatial aspects of physical and human landscapes.