In 1854, London physician Dr. John Snow mapped the spatial relationship between deaths from the waterborne disease cholera and the locations of water pumps which brought in water directly from tunnels connected to the River Thames. From Snow’s research it was determined that a public water pump had been contaminated by sewage. What geographic principle explains the significance of Snow’s research?

This question is incomplete because the options are missing; here is the missing section:

What geographic principle explains the significance of Snow’s research?

A . As cities remove natural resources from the landscape, those resources become insignificant.

B . Even in areas of urban land use, there is a significant relationship between nature and society.

C . Once water enters an area of urban land use, that water is no longer considered a natural resource.

D . The prosperity of a society is determined by environmental factors, such as the availability of natural resources.

E . Societies leave a cultural imprint on the land, such as the pattern of streets and water systems.

The answer to this question is B. Even in areas of urban land use, there is a significant relationship between nature and society.

Explanation:

One of the principles in geography is that human societies are closely related to geographic elements including water of bodies. This principle is shown in the example described because this shows human societies rely on natural bodies of water for water supply; moreover, changes in water sources or in the system of water pumping including contamination with bacteria such as cholera affects human societies by increasing the rate of death and disease. This means that even in rural areas, in which nature and geographical elements have been modified, there is a relationship between nature and society (option B.)