Who,ofthefollowing, defined HumanGeographyas“Conceptionresulting from a moresynthetic knowledge of the physical laws governing our earth and of the relations between the living beings which inhabit it”

The correct option is Ratzel.

Friedrich Ratzel, a pioneering German geographer, is widely regarded as one of the key founders of modern human geography. Through his influential work, particularly Anthropogeographie, he formalized the study of the relationships between human societies and their physical environment.
Ratzel defined human geography in terms of a "synthetic knowledge" to emphasize that the discipline must integrate both the physical laws governing the Earth and the complex web of relations between the Earth and its inhabitants. His approach focused on how physical geography acts as a determining factor in shaping human culture, distribution, and activities, thereby creating a synthesis of natural laws and living beings.